wind

Definitions

  • Method of Using the Winding-Sticks
    Method of Using the Winding-Sticks
  • WordNet 3.6
    • v wind raise or haul up with or as if with mechanical help "hoist the bicycle onto the roof of the car"
    • v wind form into a wreath
    • v wind coil the spring of (some mechanical device) by turning a stem "wind your watch"
    • v wind arrange or or coil around "roll your hair around your finger","Twine the thread around the spool","She wrapped her arms around the child"
    • v wind to move or cause to move in a sinuous, spiral, or circular course "the river winds through the hills","the path meanders through the vineyards","sometimes, the gout wanders through the entire body"
    • v wind catch the scent of; get wind of "The dog nosed out the drugs"
    • v wind extend in curves and turns "The road winds around the lake","the path twisted through the forest"
    • n wind the act of winding or twisting "he put the key in the old clock and gave it a good wind"
    • n wind breath "the collision knocked the wind out of him"
    • n wind a reflex that expels intestinal gas through the anus
    • n wind a musical instrument in which the sound is produced by an enclosed column of air that is moved by the breath
    • n wind an indication of potential opportunity "he got a tip on the stock market","a good lead for a job"
    • n wind empty rhetoric or insincere or exaggerated talk "that's a lot of wind","don't give me any of that jazz"
    • n wind a tendency or force that influences events "the winds of change"
    • n wind air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure "trees bent under the fierce winds","when there is no wind, row","the radioactivity was being swept upwards by the air current and out into the atmosphere"
    • ***

Additional illustrations & photos:

The north wind doth blow The north wind doth blow
THEN THERE CAME A WIND SO STRONG THAT IT BLEW OFF CURDKEN'S HAT THEN THERE CAME A WIND SO STRONG THAT IT BLEW OFF CURDKEN'S HAT
Steps wind up between a rock wall and trees Steps wind up between a rock wall and trees
Winding the Skein Winding the Skein
DRIVER AND BRASSY. STANCE FOR A LOW BALL AGAINST THE WIND DRIVER AND BRASSY. STANCE FOR A LOW BALL AGAINST THE WIND
DRIVER AND BRASSY. STANCE FOR A HIGH BALL WITH THE WIND DRIVER AND BRASSY. STANCE FOR A HIGH BALL WITH THE WIND
A LOW BALL (AGAINST WIND) WITH THE CLEEK. STANCE A LOW BALL (AGAINST WIND) WITH THE CLEEK. STANCE
A LOW BALL (AGAINST WIND) WITH THE CLEEK. TOP OF THE SWING A LOW BALL (AGAINST WIND) WITH THE CLEEK. TOP OF THE SWING

Webster's Revised Unabridged Dictionary
  • Interesting fact: In a lifetime, an average driver will release approximately 912 pints of wind inside a car
    • Wind A direction from which the wind may blow; a point of the compass; especially, one of the cardinal points, which are often called the four winds. "Come from the four winds , O breath, and breathe upon these slain."
    • Wind (Far) A disease of sheep, in which the intestines are distended with air, or rather affected with a violent inflammation. It occurs immediately after shearing.
    • Wind Air artificially put in motion by any force or action; as, the wind of a cannon ball; the wind of a bellows.
    • Wind Air impregnated with an odor or scent. "A pack of dogfish had him in the wind ."
    • Wind Air naturally in motion with any degree of velocity; a current of air. "Except wind stands as never it stood,
      It is an ill wind that turns none to good."
      "Winds were soft, and woods were green."
    • Wind Air or gas generated in the stomach or bowels; flatulence; as, to be troubled with wind .
    • Wind Breath modulated by the respiratory and vocal organs, or by an instrument. "Their instruments were various in their kind,
      Some for the bow, and some for breathing wind ."
    • Wind Mere breath or talk; empty effort; idle words. "Nor think thou with wind Of airy threats to awe."
    • Wind Power of respiration; breath. "If my wind were but long enough to say my prayers, I would repent."
    • n Wind The act of winding or turning; a turn; a bend; a twist; a winding.
    • Wind (Zoöl) The dotterel.
    • Wind (Boxing) The region of the pit of the stomach, where a blow may paralyze the diaphragm and cause temporary loss of breath or other injury; the mark.
    • v. t Wind To blow; to sound by blowing; esp., to sound with prolonged and mutually involved notes. "Hunters who wound their horns.""Ye vigorous swains, while youth ferments your blood, . . . Wind the shrill horn.""That blast was winded by the king."
    • Wind To cover or surround with something coiled about; as, to wind a rope with twine.
    • Wind To drive hard, or force to violent exertion, as a horse, so as to render scant of wind; to put out of breath.
    • Wind To entwist; to infold; to encircle. "Sleep, and I will wind thee in arms."
    • Wind To expose to the wind; to winnow; to ventilate.
    • Wind To go to the one side or the other; to move this way and that; to double on one's course; as, a hare pursued turns and winds . "The lowing herd wind slowly o'er the lea.""To wind out, to extricate one's self; to escape.
      Long struggling underneath are they could wind Out of such prison."
    • Wind To have a circular course or direction; to crook; to bend; to meander; as, to wind in and out among trees. "And where the valley winded out below,
      The murmuring main was heard, and scarcely heard, to flow."
      "He therefore turned him to the steep and rocky path which . . . winded through the thickets of wild boxwood and other low aromatic shrubs."
    • Wind To have complete control over; to turn and bend at one's pleasure; to vary or alter or will; to regulate; to govern. "To turn and wind a fiery Pegasus.""In his terms so he would him wind .""Gifts blind the wise, and bribes do please
      And wind all other witnesses."
      "Were our legislature vested in the prince, he might wind and turn our constitution at his pleasure."
    • Wind To introduce by insinuation; to insinuate. "You have contrived . . . to wind Yourself into a power tyrannical.""Little arts and dexterities they have to wind in such things into discourse."
    • Wind To perceive or follow by the scent; to scent; to nose; as, the hounds winded the game.
    • Wind To rest, as a horse, in order to allow the breath to be recovered; to breathe.
    • Wind To turn completely or repeatedly; to become coiled about anything; to assume a convolved or spiral form; as, vines wind round a pole. "So swift your judgments turn and wind ."
    • Wind To turn completely, or with repeated turns; especially, to turn about something fixed; to cause to form convolutions about anything; to coil; to twine; to twist; to wreathe; as, to wind thread on a spool or into a ball. "Whether to wind The woodbine round this arbor."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: The windiest place in the world is Mount Washington, New Hampshire, USA. The highest wind was on April 12, 1934 when it reached 231 mph.
    • wind To move in this direction and in that; change direction; vary from the direct line or course; bend; turn; double.
    • wind To go in a crooked or devious course; meander: as, the stream winds through the val ley; the road winds round the hill.
    • wind To make an indirect advance; “fetch a compass”; “beat about the bush.”
    • wind To twine; entwine one's self or itself round something: as, vines wind round the pole.
    • wind To twist one's self or worm one's way into or out of something.
    • wind To turn or toss about; twist; squirm.
    • wind To have a twist or an uneven surface, or a surface whose parts do not lie in the same plane, as a piece of wood.
    • wind To return.
    • wind To cause to move in this direction and in that; turn.
    • wind To bend or turn at will; direct according to one's pleasure; vary the course or direction of; hence, to exercise complete control over.
    • wind To turn or twist round and round on some thing; place or arrange in more or less regular coils or convolutions on something (such as a reel, spool, or bobbin) which is turned round and round; form into a ball, hank, or the like by turning that on which successive coils are placed, or by carrying the coils round it: as, to wind yarn or thread.
    • wind To form by twisting or twining; weave; fabricate.
    • wind To place in folds, or otherwise dispose on or around something; bind; twist; wrap.
    • wind To entwist; infold; encircle: literally or figuratively.
    • wind To haul or hoist by or as by a winch, whim, capstan, or the like: as, to wind or warp a ship out of harbor; specifically, in mining, to raise (the produce of the mine) to the surface by means of a winding-engine; hoist. The term wind, as well as draw, is often employed in Great Britain, while hoist is generally used in the United States. In the early days of mining, ore and coal were almost exclusively raised by hand-, horse-, or steam-power, in buckets or kib bles; at the present time, in both England and the United States, this is done by means of a winding-engine which turns a drum on which a rope (generally of steel wire) is wound and unwound, and by means of which a cage (see cage, 3 ) is raised or lowered, on which the loaded cars are lifted to the surface, and the empties returned to the pit-bottom. The dimensions of engines, drums, and cages in large mines are sometimes very great, as is also the velocity with which the machinery is moved. Thus, in the Monkwearmouth colliery, Durham, England, the wind ing-drums are 25 feet in diameter, the rope weighs 4½ tons, the cage and load 7½ tons; the vertical distance through which the cage is raised is 580 yards, and the time occupied in lifting it and discharging the cars is two minutes and four seconds.
    • wind To insinuate; work or introduce insidiously or stealthily; worm.
    • wind To contrive by resort to shifts and expedients (to effect something); bring; procure or get by devious ways.
    • wind To circulate; put or keep in circulation.
    • wind To adjust or dispose for work or motion by coiling a spring more tightly or otherwise turning some mechanical device: as, to wind a clock or a watch. See to wind up , below.
    • wind Hence— To bring to a final disposition or conclusion; finish; arrange and adjust for final settlement, as the affairs of a company or partner ship on its dissolution.
    • wind To tighten, as the strings of certain musical instru ments, so as to bring them to the proper pitch; put in tune by stretching the strings over the pegs.
    • wind Hence, figuratively
    • wind To restore to harmony or con cord; bring to a natural or healthy condition.
    • wind To bring to a state of great tension; subject to a severe strain or excitement; put upon the stretch.
    • wind To bring into a state of renewed or continued motion, as a watch or clock, by coiling anew the spring or drawing up the weights.
    • wind Hence, figuratively
    • wind To prepare for continued movement, action, or activity; arrange or adapt for continued operation; give fresh or continued activity or energy to; restore to original vigor or order.
    • wind To hoist; draw; raise by or as by a winch.
    • n wind A winding; a turn; a bend: as, the road there takes a wind to the south.
    • n wind Air naturally in motion at the earth's surface with any degree of velocity; a current of air as coming from a particular direction. When the air has only a slight motion, it is called a breeze; when its velocity is greater, a fresh breeze; and when it is violent, a gale, storm, or hurricane. The ultimate cause of winds is to be found in differences of atmospheric density produced by the sun in its unequal heating of different parts of the earth. These original differences of densitygive rise to vertical and horizontal currents of air which constitute and establish the general atmospheric circulation, and determine permanent belts of relatively high and low pressure over the earth's surface. Differences of pres sure, in turn, produce their own differences of density at the earth's surface, and thereby become a secondary cause of winds. The general system of atmospheric circulation, with respect both to surface-winds and to their correlative upper currents, is described under trade-wind. In accordance with the character of their exciting cause, winds may be divided into
    • n wind A direction from which the wind may blow; a point of the compass, especially one of the cardinal points.
    • n wind Air artificially put in motion by any force or action: as, the wind of a bellows; the wind of a bullet, or a cannon-ball (see windage).
    • n wind Air impregnated with animal odor or scent.
    • n wind In musical instruments the sound of which is produced by a stream of compressed air or breath, either the supply of air under compres sion, as in the bellows of an organ orin a singer's lungs, or the stream of air used in sound-pro duction, as in the mouth of an organ-pipe, in the tube of a flageolet, or in the voice.
    • n wind Breath; also, power of respiration; lungpower. See second wind, below.
    • n wind The part of the body in the region of the stomach, a blow upon which causes a temporary loss of respiratory power by paralyzing the diaphragm for a time. It forms a forbidden point of attack in scientific boxing.
    • n wind The wind-instruments of an orchestra taken collectively, including both the wood wind (flutes, oboes, etc.) and the brass wind (trumpets, horns, etc.).
    • n wind Anything light as wind, and hence ineffectual or empty; especially, idle words, threats, bombast, etc.
    • n wind Air or gas generated in the stomach and bowels; flatulence.
    • n wind A disease of sheep, in which the intestines are distended with air, or rather affected with a violent inflammation. It occurs immediately after shearing.
    • n wind Hence, figuratively
    • n wind Any part or point generally where a blow or attack will most effectually injure.
    • n wind Toward ruin, decay, or adversity. Compare to whistle off, under whistle, v. t.
    • n wind Figuratively, the position or state of affairs; how matters stand at a particular juncture: as, trifies show how the wind blows.
    • n wind Thras. I am come to intreat you to stand my friend, and to favour me with a longer time, and I wil make you sufficient consideration.
    • n wind To border closely upon dishonesty or indecency: as, beware in dealing with him, he sails rather close to the wind.
    • n wind See sail.
    • n wind Synonyms Wind, Breeze, Gust, Flaw, Blast, Storm, Squall, Gale, Tempest, Hurricane, Tornado, Cyclone, etc. Wind is the general name for air in motion, at any rate of speed. A breeze is gentle and may be fitful; a gust is pretty strong, but especially sudden and brief; a flaw is essentially the same as gust, but may rise to the force of a squall; a blast is stronger and longer than a. gust; a storm is a violent disturbance of the atmosphere, generally attended by rain, hail, orsnow; a squall is a storm that begins suddenly and is soon over, perhaps consisting of a series of strong gusts; a gale is a violent and continued wind, lasting for hours or days, its strength being marked by such adjectives as stiff and hard; a tempest is the stage between a gale and a hurricane—hurricane being the name for the wind at its greatest height, which is such as to destroy buildings, uproot trees, etc. A tornado and a cyclone are by derivation storms in which the wind has a circular or rotatory movement (see defs.).
    • wind To force wind through with the breath; blow; sound by blowing: as, to wind a horn: in this sense and the three following pronounced wīnd.
    • wind To produce (sound) by blowing through or as through a wind-instrument.
    • wind To announce, signal, or direct by the blast of a horn, etc.
    • wind To perceive or follow by the wind or scent; nose.
    • wind To expose to the wind; winnow; ventilate.
    • wind To drive or ride hard, as a horse, so as to render scant of wind.
    • wind To rest, as a horse, in order to let him recover wind.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: The strongest gust of wind was recorded at the Mount Washington Observatory on April 12th, 1934, and measured 231 miles per hour.
    • n Wind wind (poet. wīnd), air in motion: breath: flatulence: anything insignificant: the wind instruments in an orchestra: air impregnated with scent: a hint or suggestion of something secret, publicity:
    • v.t Wind (wīnd) to sound or signal by blowing: to scent: (wind) to expose to the wind: to drive hard, so as to put out of breath: to allow to recover wind:—pr.p. wīnd′ing and wind′ing; pa.p. wind′ed and wound
    • adj Wind toward the wind
    • n Wind the point from which the wind blows
    • v.t Wind wīnd to turn: to twist: to coil: to haul or hoist, as by a winch: to encircle: to change:
    • v.i Wind to turn completely or often: to turn round something: to twist: to move spirally: to meander: to beat about the bush:—pr.p. wīnd′ing; pa.t. and pa.p. wound
    • n Wind a turning: a twist
    • n Wind (slang) a part of the body near the stomach: a disease of sheep in which the inflamed intestines are distended by gases
    • v.t Wind wīnd (Spens.) to weave
    • ***

Quotations

  • John Neal
    John Neal
    “A certain amount of opposition is a great help to a man. Kites rise against, not with, the wind.”
  • Kahlil Gibran
    Kahlil%20Gibran
    “And let the winds of the heavens dance between you.”
  • Christina Rossetti
    Christina%20Rossetti
    “And all the winds go sighing, for sweet things dying.”
  • Bible
    Bible
    “Who so regardeth dreams is like him that catcheth at a shadow, and followeth after the wind. [Ecclesiasticus 34:2]”
  • Dante Alighieri
    Dante%20Alighieri
    “Worldly fame is but a breath of wind that blows now this way, and now that, and changes name as it changes direction.”
  • William Shakespeare
    William%20Shakespeare
    “Words are easy, like the wind; Faithful friends are hard to find.”

Idioms

Don't know whether to wind a watch or bark at the moon - If you don't know what to do, you don't know whether to wind a watch or bark at the moon.
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Get wind of - If you get wind of something, you hear or learn about it, especially if it was meant to be secret.
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It's an ill wind that blows no good - This is said when things have gone wrong; the idea being that when bad things happen, there can also be some positive results.
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Know which way the wind blows - This means that you should know how things are developing and be prepared for the future.
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Sail close to the wind - If you sail close to the wind, you take risks to do something, going close to the limit of what is allowed or acceptable.
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Scattered to the four winds - If something's scattered to the four winds, it goes out in all directions.
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Second wind - If you overcome tiredness and find new energy and enthusiasm, you have second wind.
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Seven sheets to the wind - If someone is seven sheets to the wind, they are very drunk.
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Throw caution to the wind - When people throw caution to the wind, they take a great risk.
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Twisting in the wind - If you are twisting in the wind, you are without help or support - you are on your own.
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Whistle down the wind - If you whistle down the wind, you abandon, send away or leave something or someone.
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Etymology

Webster's Revised Unabridged Dictionary
AS. wind,; akin to OS., OFries., D., & G. wind, OHG. wint, Dan. & Sw. vind, Icel. vindr, Goth winds, W. gwynt, L. ventus, Skr. vāta,cf. Gr. 'ah`ths a blast, gale, 'ah^nai to breathe hard, to blow, as the wind); originally a p. pr. from the verb seen in Skr. , to blow, akin to AS. wāwan, D. waaijen, G. wehen, OHG. wāen, wājen, Goth. waian,. √131. Cf. Air Ventail Ventilate Window Winnow
Chambers's Twentieth Century Dictionary
A.S. windan; Ger. winden, Ice. vinda, Goth. windan. Cf. Wend, Wander.

Usage

In literature:

It was some time, however, before we could settle the point, as the wind was light and we made but little way.
"The Rival Crusoes" by W.H.G. Kingston
With one mast and a large sail they flew before the wind.
"A Book of Discovery" by Margaret Bertha (M. B.) Synge
The wind was from the west, which is a head wind for sailing to Achter Kol.
"Journal of Jasper Danckaerts, 1679-1680" by Jasper Danckaerts
On the 25th of September the wind again became favourable, and the squadron resumed its westerly course.
"Notable Voyagers" by W.H.G. Kingston and Henry Frith
It was the sunrise, and the wind, which must tell him the things he desired to know.
"The Heart of Unaga" by Ridgwell Cullum
The tug of wind and tide had been too much for the single cable.
"Swept Out to Sea" by W. Bertram Foster
The wind is blowing this way.
"The Camp in the Snow" by William Murray Graydon
A puff of gray wind come down; a saucier gust went by; and then a swirl of galish wind jumped over the pans.
"Harbor Tales Down North" by Norman Duncan
Happily, at this moment the wind veered a point to the east.
"The Voyages of the Ranger and Crusader" by W.H.G. Kingston
There was no open road winding before them.
"The Snowshoe Trail" by Edison Marshall
The wind was light, and they made but slow progress.
"The Three Midshipmen" by W.H.G. Kingston
The wind was pretty fresh from the westward, and he went off wing-and-wing before it.
"Little Bobtail" by Oliver Optic
The wind was sensibly freshening, but the Goldwing did not need any more wind just then.
"All Adrift" by Oliver Optic
North wind or south wind, east wind or west wind all said something to him.
"The Keepers of the Trail" by Joseph A. Altsheler
Wind abeam or quartering; more particularly a free or fair wind, and is used in contradistinction to a scant wind.
"The Sailor's Word-Book" by William Henry Smyth
And the winds of the week had been fair winds from the French Shore.
"Billy Topsail & Company" by Norman Duncan
His voice, which arose alone above the roaring of the wind, sounded very solemn.
"The Voyages and Adventures of Captain Hatteras" by Jules Verne
And now the south wind flung it to the north To buffet; now the east wind to the west.
"Poetical Works of William Cullen Bryant" by William Cullen Bryant
The wind was light all day; but the old 'Sunbeam' glided gracefully along, and made good progress through the hot air.
"The Last Voyage" by Lady (Annie Allnutt) Brassey
The wind whistled in his teeth as his good horse sped across ploughed lands, and took ditch or garden wall with noble bounds.
"God Wills It!" by William Stearns Davis
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In poetry:

"But roses wither,
Chill winds blow hither,
One thing all say, dear,
Love lives a day, dear!"
"Wedding Day" by Edith Nesbit
In the sun, in the wind,
Do its bright colors shine.
O look at the flag,
It is yours, it is mine!
"Flag Song" by Nancy Byrd Turner
A dewdrop
It is not, my heart, on a flower
Fallen; yet
With a breath of wind
My concern grows deeper.
"A dewdrop" by Ki no Tsurayuki
Paracelsus.
'T is the melancholy wind astir
Within the trees; the embers too are grey:
Morn must be near.
"Paracelsus: Part III: Paracelsus" by Robert Browning
and I let me go
where ill winds blow
now here, now there,
harried and sped,
even as a dead
leaf, anywhere.
"Autumn Song" by Paul Verlaine
When the winds are moaning o'er the meadows chill and gray,
And the land is dim with winter gloom,
Then for thee, my darling, love will have its way,
When the winds are moaning o'er the meadows chill and gray.
"Love's Seasons" by Paul Laurence Dunbar

In news:

Hi: ?, Lo: ?Wind: Gust: MPH Wind Direction: ().
Pantego Wind Energy announced plans last year to develop a wind farm on 11,000 acres in Beaufort County.
Crews continue construction on the wind power substation at Spinning Spur Wind Ranch, west of Vega.
Wind towers generate electricity at Searsburg Wind Power Facility, which would be enlarged as part of the Deerfield project.
As the war winds down, our commitment to the troops who served shouldn't wind down with it.
National Weather Service meteorologists issued a wind advisory due to the potential for winds of more than 30 mph and gusts of more than 50 mph.
The 130- megawatt Benton County Wind Farm was the state's first commercial power station fueled by the wind.
(AP) — A Germany-based company that owns and operates wind farms across the US is making progress building its first Indiana wind farm.
A New Study Takes The Wind Out Of Wind Energy.
Gusty winds caused problems for firefighters throughout the day yesterday and aircraft even had trouble determining the size of the fire because of the high winds.
GUCKEEN — With a court case behind it, Fagen Inc of Granite Falls can move forward with the Big Blue Wind Farm, which involves 18 wind turbines in Faribault County.
FILE- In this Oct 26, 2011, file photo, wind turbines line the hillside at First Wind's project in Sheffield, Vt.
High winds and heavy rain buffeted New Jersey today, with some wind gusts reaching 60 mph.
Some in Wyoming say a Colorado utility's rejection of southeast Wyoming wind power as part of its energy supply doesn't negate the need for wind and transmission development in southeast Wyoming.
Workers are reinforcing the foundations following the collapse of one of 20 wind turbines at the Fenner Wind Farm.
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In science:

In our example, the α = 1/6 wind has αsph = 1/3 and the shell propagates along the axis like a bubble from an isotropic wind of higher α-value.
Trapped Protostellar Winds and their Breakout
Considering sources for which wind interaction models are acceptable, a range of wind densities is required, from values typical of Galactic Wolf-Rayet stars to values ∼ 102 times smaller.
The Diversity of Gamma-Ray Bursts and the Surroundings of Massive Stars
The termination shock of the Wolf-Rayet star wind should be adiabatic, leading to a relatively thick region of shocked wind.
The Diversity of Gamma-Ray Bursts and the Surroundings of Massive Stars
In addition to placing constraints on models with constant density interaction, the shocked wind scenario constrains the free wind models in that the termination shock must lie beyond the region where the free wind model has been applied.
The Diversity of Gamma-Ray Bursts and the Surroundings of Massive Stars
In addition to numerous stellar wind lines of He ii, fine structure lines of [Ne iii] and [O iv] are revealed, permitting an estimate of the asymptotic wind velocity, ∼1860 km s−1 , plus elemental abundances.
Spitzer-IRS Sectroscopy of the Prototype Wolf-Rayet star EZ CMa (HD 50896)
The winding number m describes how many times the string winds around the circle parametrized by φ.
New Integrable System of 2dim Fermions from Strings on AdS_5 x S^5
Further we assume: (a) The O  emission region is connected with the wind from the hot star. (b) The scattering region is represented by neutral atoms of hydrogen of the wind from the giant. (c) Between the binary components there is an interaction zone of the two winds.
Structure of the hot object in the symbiotic prototype Z And during its 2000-03 active phase
This can be satisfied if these lines are formed within the wind-wind interaction zone.
Structure of the hot object in the symbiotic prototype Z And during its 2000-03 active phase
Winding of Multiple SLE’s Let us finally return to the winding angle variance at points w here k strands come together in a star con figuration Sk .
Conformal Random Geometry
During the accelerometer measurements simultaneous wind speed and direction measurements were used to eliminate the effects of the local wind spectrum.
Evaluation of the ALMA Prototype Antennas
Wind-related antenna performance was calculated for the same wind spectrum used for the design of the antennas.
Evaluation of the ALMA Prototype Antennas
Wind power spectra, normalised with the typical undisturbed wind spectrum.
Study of the Dynamics of Large Reflector Antennas with Accelerometers
The wind power spectra are needed to scale the antenna vibration power spectra to that for a reference wind spectrum.
Study of the Dynamics of Large Reflector Antennas with Accelerometers
Prediction of low frequency wind effects was done using the average power spectra calculated from all available wind data, and extrapolation from the 0.2 - 1.0 Hz range.
Study of the Dynamics of Large Reflector Antennas with Accelerometers
The PSD was scaled with the wind speed, and divided by the average scaled PSD for wind coming from unobstructed directions.
Study of the Dynamics of Large Reflector Antennas with Accelerometers
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