pressure of the wind 中文意思是什麼

pressure of the wind 解釋
風力
  • pressure : n 1 壓;按;擠;榨。2 【物理學】壓力,壓強;大氣壓力;電壓。3 精神壓力,政治[經濟、輿論等]壓力。4...
  • of : OF =Old French 古法語。
  • the : 〈代表用法〉…那樣的東西,…那種東西。1 〈用單數普通名詞代表它的一類時(所謂代表的單數)〉 (a) 〈...
  • wind : n 1 風;大風,暴風;氣流;【機械工程】壓縮空氣。2 【航海】上風;風向;〈古語〉〈pl 〉方向。3 氣息...
  1. The state of the atmosphere at a given time and place, with respect to variables such as temperature, moisture, wind velocity, and barometric pressure

    天氣:給定時間和地點的大氣狀況,牽涉到變量如溫度、濕度、風速和氣壓。
  2. In chapter three, we negative the nonliear terms in the system of equations which include surface pressure, wind stress and coriolis force terms. the height of the storm surge and the storm current can be seen as two terms

    在第三章里,我們忽略了控制方程中的非線性項,將風暴潮潮高和風暴潮流分成氣壓效應和風應力效應的疊加。
  3. Abstract : the paper introduced the theory of piping transportation of the 1 500 deadweight ton bulk cement barge, and provided the numeration and selection method of main parameters, such as pipe diameter, wind pressure, flux, etc

    文摘:介紹了1500t散裝水泥運輸船的水泥管道輸送原理,給出了該船上壓縮空氣管、流化空氣管和水泥裝卸管的管徑、風壓、流量參數的計算和選用方法。
  4. Grains moving in saltation receive most of their forward momentum directly from the pressure of the wind.

    在跳躍運動中的顆粒直接接受來自風壓力的大部分向前的動量。
  5. The diagnostic analysis for the sandstorm process on the base of height, temperature, pressure and wind etc output from the model shows that the upper cold trough, low - level wind shear, surface cold anticyclonic ridge, mesoscale cyclone and cold front are the main synoptic systems, surface cold anticyclonic ridge and cold front provide condition of wind force to occurrence of the sandstorm weather, the strong mesoscale cyclone before front makes pressure gradient before and after cold front obviously strengthen, moreover, and it increases obviously the temperature of the controlled area, as a result, the updraft movement caused by convergence before front strengthens

    500hpa強鋒區、 700hpa切變和鋒前中尺度系統的強弱及位置變化是沙塵暴天氣發生發展到減弱的直接原因。地面冷高壓、地面氣旋及冷鋒是造成本次沙塵暴天氣的主要地面天氣系統。地面冷高壓及冷鋒為沙塵暴天氣的發生提供了風力條件,而中尺度氣旋使冷鋒前後氣壓梯度明顯增強外,又使所控制的區域增溫明顯,使鋒前輻合上升運動加強,為沙塵暴天氣的發生提供了熱、動力條件。
  6. The application of natural wind pressure in mine ventilation

    自然風壓對礦井通風系統的影響
  7. By using the theoritical analysis, we study the nonlinear interaction between the storm surges and the astronomical tides and the theoritical mode of the storm surges under the control of the wind stress field and the wind pressure field in this paper

    本文運用理論分析的方法研究了風暴潮與天文潮的非線性相互作用以及風場、氣壓場作用下的風暴潮波的物理機制問題。本文共分為四章。
  8. Digital temperature transmitter, digital level, explosion - proof electric contact manometer figures generally used manometers, vacuum table, table vacuum pressure, oxygen forms of electric contact manometer, explosion - proof electric contact manometer seismic contact ammonia electricity connections. contact monometers assisted magnetic, seismic, heat - resistance, acid and alkali resistance, chlorine, sulfur - resistant, stainless steel pressure gauge. divide manometer shenyang city, the total, precision manometer, out of the wind pressure gauge, film boxes pressure gauge, diaphragm pressure gauge

    主要產品包括:數字壓力表,數字膜盒壓力表,數字溫度表,數字壓力變送器,數字溫度變送器,數字液位計,數字防爆電接點壓力表,一般用壓力表真空表壓力真空表氧氣表電接點壓力表防爆電接點壓力表耐震電接點氨用電接點磁助式電接點壓力表耐震耐高溫耐酸耐堿耐氯耐硫全不銹鋼壓力表隔膜壓力表沈陽市優質產品精密壓力表出風壓力表膜盒壓力表膜片壓力表全不銹鋼膜片壓力表鈦壓力表及出口全不銹鋼,充油全不銹鋼系列壓力表,壓差表,壓力變送器,各種軸向軸向帶邊法蘭連接等多種形式。
  9. Under the dual pressure of lack of normal energy and deterioration of global ecologic environment, wind power becomes a substitute for it ’ s a kind of pollute - free, renewable and clean energy. during past 30 years, wind power has been seen a very quick development

    在常規能源告急和全球生態環境惡化的雙重壓力下,風能作為一種無污染、可再生、高效清潔的替代能源,在近30年來發展尤為迅猛。
  10. Using the system designed in this thesis work, flow field calibration of the wind tunnel is accomplished, which covers dynamic pressure drop coefficient, dynamic pressure time stability, axial static pressure gradient, boundary layer, and degree of turbulence, etc. boundary layer measuring principle and method are especially described in detail, the relationship between boundary layer thickness, wind speed setting, and the depth of the experimental section is summarized, and finally the calibration data for th e model center zone under specific wind speed are given

    然後利用本文設計的系統完成了落差系數、動壓時間穩定姓、軸向靜壓梯度、邊界層及湍流度等內容的流場校測。特別對邊界層測量的原理及方法做了較詳盡的敘述,總結出邊界層厚度與設定風速、實驗段深度的關系,然後給出模型中心區一定風速下校正數值。
  11. Furthermore, the isoline maps of mean wind pressure coefficients and rms wind pressure coefficients of the structure under various wind directions are plotted. in the matter of theoretical analysis, modeling with finite element method, using the local mean wind pressure coefficients and time history of fluctuating pressures determined in wind tunnel, the wind - induced dynamic responses for long - span grid roof structures are calculated in frequency domain and time domain separately

    在理論分析方面,建立合理的有限元模型,利用剛性模型風洞試驗獲得的各種不同情況下屋面各節點的平均風壓系數和脈動風壓時程,在頻域內和時域內進行了大跨網架屋蓋結構的風振響應分析。
  12. Originating airport name, metar speci issue time, wind direction speed gust, wind direction variation, visibility, runway visual range, weather during time of observation, cloud, air temperature dew - point, qnh pressure measured at airport with adjustment made to suit aeronautical use, weather during the past hour but not at time of observation, wind shear information, trend - type landing forecast

    發出資料的機場名稱發出metar speci的時間風向風速陣風風向轉變能見度跑道視程觀測時的天氣雲層氣溫露點qnh在機場錄得的氣壓,經調整以配合航空用途過去一小時但非觀測時的天氣風切變資料飛機降落用的趨勢預測。
  13. Originating airport name, metarspeci issue time, wind directionspeedgust, wind direction variation, visibility, runway visual range, weather during time of observation, cloud, air temperaturedew - point, qnh ( pressure measured at airport with adjustment made to suit aeronautical use ), weather during the past hour but not at time of observation, wind shear information, trend - type landing forecast

    Metarspeci電碼包含趨勢預測,即預測未來兩小時內天氣的轉變,而且更利用特別標號(視乎情況,標號可以是ttttt = becmg或tempo )又或是nosig ,來指明轉變。 ( becmg意指逐漸轉變; tempo意指間中; nosig意指並無顯著轉變。 )
  14. Using method of oil - flow visualization techniques and measuring pressure distribution along airfoil chordwise and spanwise studies have been down for sidewall boundary - layer displacement effect in two - dimensional wind tunnel. three different chord models were tested in two different wind tunnel. in order to clarify the sidewall effects and study method of sidewall suction theory and sidewall interference correction method to remove effects of sidewall on model. the results of oil - flow test show that selection rational suction wary can obtain better testing results. by investigations on effects of the sidewall boundary layer suction and application of a sidewall interference correction method

    為了很好地解決多機場航班隊列的擁塞問題,在將進場容量、離場容量與機場容量作為統一整體的情況下,充分考慮了機場間的網路效應,詳細研究了多機場航班隊列的優化問題,建立了多機場開放式非實時流量管理的數學模型,通過選取適當的決策變量,使其為線性0 - 1整數規劃模型,實現了中心流量集中管理.與其它演算法不同,本文提出的啟發式隱枚舉演算法能很好地解決此類問題,對某機場網路系統的模擬結果證明了所建模型、優化演算法及相應軟體的有效性和可靠性
  15. By using ncep / ncar reanalysis data of height and wind, the inter - monthly lpac map, the climate lapc map, inter - annual anomaly map and mean variance map of monthly wind field of 850 and 500hpa and monthly height field of 850, 500, 150, 30hpa are calculated in a globe - belt area, which situates between 30 s and 75 n, from december 1957 to december 1997, according them we analysis the rule of the season transfer and anomaly of nh mean circulation. the results show that the climate map of lapc can describe the seasonal transfer process of large scale circulation better. the advance process of summer circulation establish is form south to north at the middle and lower level of the troposphere, that is reflected primly in the inter - monthly wind and pressure map of lapc ; at lower lever of stratosphere, the establish process is simulate to that of troposphere, and reflect of process of that the south asia high toward plateau ; at middle stratosphere the summer circulation establish begins at middle and high latitude initially, and then transmits to low latitude gradually, while the seasonal variability in mid - stratosphere is stronger than it in troposphere and low - stratosphere

    利用ncep ncar再分析高度場和風場資料,計算了30 s 75 n球帶區域1957年12月至1997年12月逐月850 、 500hpa風場及850 、 500 、 150 、 30hpa高度場月際局地型相似系數圖、多年平均圖(即氣候lpac圖) 、年際異常圖及均方差圖,在此基礎上,分析了北半球平均環流季節轉換及其異常的規律。分析表明,氣候局地型相似系數圖較好地給出了大尺度環流季節轉換發生的過程:在對流層中、下部,風、壓場月際局地型相似系數圖清楚地反映了夏季型環流建立由南向北的推進過程;低平流層夏季型環流的建立與對流層接近,其中,南亞高壓上高原過程有明顯反映:中平流層,夏季型環流的建立明顯表現為從中、高緯度開始,逐步向低緯傳播的特徵,且變化較對流層和低平流層明顯。
  16. In this paper i was in virtue of the fluent software, set up the geometrical model of jin ’ ao mansion and adjacent buildings, used non - equilibrium wall functions to deal with the problem which come from the near wall, used realizable k - turbulent model to simulate the steady flow around 3d high - rise buildings, we can get the distribution of mean wind pressure coefficient of the surface of jin ’ ao mansion and five aerodynamics components. they were compared with the data from the wind tunnel test, we found out the distance between the result of the wind tunnel test and numerical simulation in the acceptable range

    本文以fluent軟體為平臺,建立金奧大廈及其周邊建築的計算幾何模型,近壁區採用非平衡壁面函數法處理,運用基於雷諾時均的realizablek -湍流模型進行高層建築三維定常風場數值模擬,獲得金奧大廈表面時均風壓系數分佈及基底五分量氣動力,並和風洞測壓試驗的結果及風壓系數積分計算的基底五分量氣動力相比較,發現兩者之間的差異在可接受的范圍之內。
  17. Based on the results of the wind tunnel test, the response of the structure and the wind pressure distribution of different position are gotten. the evaluation of the safety and the comfortable extent under the wind vibration are achieved

    根據風洞試驗結果得到結構不同部位的風壓分佈以及結構在風載下的響應,確定對結構安全度的評估,實現風振下結構舒適度的驗算。
  18. The main results of the wind tunnel experiment on the 1 200 model of the chinese national grand theatre were introduced. at first, the wind pressure distributions of its semi - ellipsoidal surface in an atmospheric boundary layer flow were simulated, and the effect of the surface roughness was researched. the results indicated a reasonable regularity of its wind loading in various wind directions. on the problem of the environmental influence, it demonstrated that there existed a great effect for the pressure distribution of the great theatre when the grand hall is at east

    介紹中國國家大劇院模型表面風荷載的風洞實驗結果。首先對它的半橢球表面在大氣邊界層中的風壓分佈及增加表面粗糙度的影響進行研究,實驗結果表明在不同風向下它的風荷載具有很好的規律性。有環境影響的對比實驗結果表明人民大會堂對大劇院的風荷載有較大的影響。
  19. According to the parameters given by chinese code and the shape coefficients obtained from wind tunnel experiments, the relationship between velocity and pressure of fluctuating wind is dervied, and the time - history of a fluctuating wind load is given

    然後根據國家規范提供的參數及風洞試驗得到的形狀系數,推導出脈動風速及風壓之間的關系,求出脈動風荷載的時程。
  20. The two great sails were hoisted, and under the pressure of the wind the sledge slid over the hardened snow with a velocity of forty miles an hour

    兩只大帆都張起來了,借著風力雪橇以每小時四十英里的速度在結凍的雪地上飛馳開了。
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