vertical wind 中文意思是什麼
vertical wind
解釋
垂直風-
Drawback occurred in the classical vssmc can be alleviated in the proposed control scheme because of importing the eliminating chatterer. according to the control strategy put forward above, corresponding controller for abs is designed. quarter braking vehicle model with four dof ( including vertical and longitudinal motions of body as well as vertical and spin motions of wheel ) is built considering the effects of wind resistance, longitudinal inertia forces, the vertical dynamics associated with the suspen
總之，基於車輛動力學建模，提出並探索了幾種實用且具有高魯棒性的變結構、模糊控制策略在abs 、 asr及vdsc系統中的應用，而後開發了abs的ecu原形，採用實時硬體在環模擬技術，對三種模糊控制策略進行了性能模擬。 -
Based on the sha lo wan profiler data at 0740utc, the vertical shear at around 1, 100 ft was close to 8 kt per 100 ft. although this was lower than the 8 kt per 100 ft which has been used in the windshear warning system at the old kai tak airport, the increase in head wind was nonetheless significant due to the steep climb angle
根據沙螺灣的氣流剖析儀在0740utc錄得的資料顯示，在約1 ， 100尺的垂直切變接近每百尺每小時8海里。雖然此切變低於以往啟德機場的風切變警報系統所用的每百尺每小時8海里，但因為陡峭的爬升角度，令到逆風的增加變得顯著。 -
Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model
第二，討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表達式和對稱不穩定的判據，發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大，這有利於對稱不穩定的發生。第三，採用f平面、非靜力平衡、濾聲波模式，討論了中尺度垂直環流非線性攝動分析及演變方程。 -
The geostationary meteorological satellite ( gms - 5 ) derived wind data from infrared and water vapor images and tiros operational vertical sounder ( toys ) temperature and humidity data enter the assimilation system after the quality control of mm5 model
地球同步衛星（ geostationarymeteorologicalsatellite （ gms - 5 ） ）的紅外和水汽軌跡風數據及來自noaa極軌衛星的tovs （ tirosoperationalverticalsounder ）溫、濕數據作為觀測資料，經過mm5模式的質量控制而最終進入該同化系統。 -
The methods reported by g. s. young in 2000, are applied on sea surface sar images featured by three dimensional convective cells. then the following parameters are retrieved from sar images : the characteristic wave length of three dimensional convective cell, the mabl depth, the vertical convective scale velocity, the surface buoyancy flux, obukhov length and the stability correction factor for sar derived sea surface wind speed
針對海洋大氣邊界層中三維對流渦旋sar圖像，用g . s . young在2000年發表的方法，反演三維對流渦旋的特徵長度、海洋大氣邊界層高度、以及海洋大氣邊界層垂直對流尺度速度、表面浮力通量、海面風速穩定性校正因子和obukhov長度。 -
The shear experienced by the departing aircraft was due to vertical shear as the plane passed through the low level jet. based on the winds measured on - board a flight departing 8 minutes earlier, there was a rapid increase in head wind component, from 13 kt at 1, 420 ft to 39 kt at 3, 100 ft
起飛的飛機所遇到的風切變是由於該機經過低層急流的垂直切變所引致，根據一架在8分鐘前起飛的航機量度到的風速，顯示逆風由1 ， 420尺的每小時13海里急速增加到在3 ， 100尺的每小時39海里。 -
Drawing lessons from such methods that american scientists research the climatic features o f llj, combining c hinese w eather c haracteristics and c onsidering from vertical features of single station wind, we classified chinese southwest llsw, llj and low - level southwest strong wind without kernel in conception
本文借鑒北美學者研究低空急流氣候特徵時的思想方法，同時結合中國的天氣特點，從單站風的垂直結構特點出發，對中國的西南低層大風、西南風低空急流、無核低層西南大風現象作了概念分類。 -
It was well known that the main process of precipitation formation was collecting cloud water in the warm area and ice phase particles melting in the cold area. positive vertical velocity existed between 700hpa and 500hpa in the warm area and near surface in the cold area. wind convergence existed at the height of 700hpa, and divergence existed above and below the height of 700hpa
通過對降水雲系的綜合研究，建立了河南省春季層狀雲降水概念模型：暖區降水主要通過雲水碰並形成，冷區降水機制以冰粒子融化等冷雲過程為主;暖區700一50ohpa通常有上升氣流，冷區上升氣流分佈在近地面附近: 700沖a存在風場的輻合，其上下則主要是輻散區;水汽主要集中在7o0hpa高度上，暖區水汽來自南、東南方向，冷區水汽以西南輸送為主;暖區位勢不穩定分佈在o 。 -
Numerical models are frequently used to simulate water flow in hydraulic engineering. shallow water equations are basic governing equations with assumption of the velocity distribution uniformly in vertical, so they have some limitations on the simulation of some plane flows, such as wind - induced flow, curve river flow and flow nearby the submerged dikes. for above - mentioned reasons, extended shallow water equations are developed by introduction of momentum coefficient, correction of convection and bed resistance in equations of motion
在水利工程中經常需要採用數學模型模擬水流的流態，淺水方程是進行平面流態模擬計算的基本控制方程，但因其忽略了流速垂線分佈的不均勻性，在模擬某些平面流態（如風生流動、河灣水流、潛壩等工程附近的流動）時存在一定的局限性。 -
Guy cable design of vertical axis wind turbine
立軸風力機的拉索設計 -
Yingxian ancient wooden pagoda is a flat - form tall building, which was formed by the superposition of monolayer temples. the height of 67. 31 meters made it encountered two unprecedented puzzles : firstly, with the height increased whopping, wind resisting and aseismatic capability become the main question of the whole structure ; secondly, because of the weight increased unconventionally, members of the lower 1 ~ 3 floors hold overloading perpendicular to grain and they brought large vertical deformation
相對於一般殿堂結構，高度和自重的成倍增加，使木塔遇到前所未有的兩項難題:其一是因自重增加，使承受上層柱軸向荷載的梁（普拍枋和梁? ）橫紋局壓應力成倍地超過設計強度而產生嚴重的壓縮變形甚至劈裂，導致木塔整體豎向變位。 -
Both tidal mixing and wind stirring can weaken the vertical stratification induced by freshwater buoyancy, but different mechanisms dominate such a process : tidal mixing is accomplished through the upward dissipation of turbulent kinetic energy whereas wind stirring is in the opposite direction
盡管潮汐混合和風的攪動作用均能削弱河流沖淡水浮力引起的垂直層化現象，但是其控制機制有所不同：潮汐混合是通過湍流動能自下向上的耗散來完成的，風攪動的方向恰好相反。 -
The wind - tunnel investigation of the characteristics and mechanism of twin - vertical tail buffet of leading - edge extension configuration
邊條翼布局雙垂尾抖振特性與機理風洞實驗研究 -
It is showed in buffeting analysis that the analysis results in time domain agree well with those in frequency domain. effect of pylon wind field can increase the lateral buffeting response of pylon. nonlinear factor can decrease the nature frequency of cable - stayed bridge, and can increase the vertical and torsional buffeting response
時域抖振分析結果表明：大跨度斜拉橋抖振的時域和頻域分析方法具有較好的一致性；考慮橋塔風效應會顯著增大橋塔的橫橋向抖振響應；非線性因素會降低斜拉橋的自振頻率，會增大斜拉橋的豎向及扭轉抖振響應。 -
The horizontal and vertical momentum loss caused by the shock of heavy rain in low - level wind shear of thunderstorms on the airframe and wing are analyzed, the water film thickness on the airframe and wings estimated, and the flight resistance resulted from raindrops - striking caused by the roughness of airplane when the heavy rain shocks the airplane is discussed
摘要分析了雷暴低空風切變中大雨滴沖擊飛機的機身和機翼而引起的水平和垂直動量損失，估算了大雨累計在機身和機翼上的水膜厚度，並討論了因遇到大雨雨滴沖撞而粗糙化的機體所產生的阻力。 -
For the vertical - axis variable - pitch cycloidal rotor, the article unify hydrodynamic performance symbol at first, classify and trim the calculation methods and formula of predicting fluid dynamical capability of water - power rotor and wind - power wheel that have been formed up to now
對于可調角直葉擺線式水輪機，首先統一定義了水動力性能符號，將已有的水力與風力轉輪的流體動力性能理論計算方法和計算公式進行分類和整理。 -
The relatively simple mass continuous equation is used to calculate vertical velocity, and use radial velocity projection relation of dual - doppler radar to retrieve the three - dimensional wind field
採用較簡單的質量連續方程求取垂直速度方案，利用兩部雷達的徑向速度投影關系反演大氣三維風場。 -
Regional photochemical reaction is weak over this area, to a great extent, the atmospheric background condition influences to the variation of surface o3, tthe variation of vertical wind speed is significant to surface o3, from seasonal distribution of vertical wind, it appears upward air current in winter, spring and autumn, repectively, while it is mainly downward in summer, it is favorable to the o3 transport from stratosphere layer. at walilguan, the variation of humidity impacts a little on surface o3, the relationship between surface o3 and wind speed is relatively complicated, by correlation statistic analyze, it is sure that the wind speed is not one of the important factor
（ 2 ）瓦里關地區局地光化學反應較弱，地面o _ 3在很大程度上受大氣背景狀況的影響； （ 3 ）垂直風變化對地面o3日變化影響較大，從垂直風季節分佈看，春、秋、冬三個季節為上升氣流，而夏季下沉氣流則很旺盛，這種分佈有利於平流層o _ 3向下的輸送； （ 5 ）濕度對地面o _ 3貢獻並不明顯； （ 6 ）各季節水平風速與地面o _ 3之間的關系較為復雜，不同季節相關分析表明，水平風速並不是影響地面o _ 3變化的主要因子之一。 -
Vertical velocity of the aircraft, vertical wind derived from flight parameters, head wind derived from on - board wind measurements and variation of on - board winds during the approach
航機的垂直速度由航機參數計算所得的垂直風速度機上測風儀量度的逆風速度及航機在降落時遇到的風場變化。 -
Finally, the perturbation of 10 parameters and the air disturbances including horizontal wind, vertical wind and gust are considered in the landing process. the simulation results show that the designed landing system possesses not only satisfactory performances but also strong robustness
本文的最後一部分對飛機自動著陸過程中存在的風干擾作了研究，建立了垂直風、水平風的數學模型，並在風的干擾下對飛機著陸過程作了閉環模擬。
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