風速向量 的英文怎麼說
中文拼音 [fēngsùxiàngliáng]
風速向量
英文
wind velocity vector-
High frequency gusts are usually measured by high response research-oriented anemometers.
高頻突風通常是用高速響應的研究性定向風速計測量。Secondly, output powers are measured in the different wind velocity or the direction angle or angle speed for mechanics model. the optimal angle of the direction is determined. that is to say, output power is the maximum in this direction angle
其次，通過對風力發電機模型在不同風速、不同方向角、不同角速度的情況下輸出功率的測量，得出最佳方向角，即在該方向角處輸出功率最大。On the other hand, it is indicated that the velocity field consists of a depth - independent inertial oscillation and a time - mean shear flow, which can be obtained by subtracting the inertial oscillations time mean in one inertial period. the hodograph of the velocity vector of time - mean flow at the different depths consists of a ekman spiral, and the surface velocity is 30. 3 ? to the right of the wind
一維模式的流場結果表明，混合層中的流場是由慣性波動與時間平均流兩部分疊加而成，且通過時間平均消去慣性波動后得到平均流，其不同深度的流速矢量構成一ekman螺旋，表層流速矢量相對風向右偏了30 . 3 』 。Among commonly used types are those employing either a propeller or cups for measuring wind speed and a vane for measuring wind direction.
普通使用的型式是測量風速的葉扇或風杯及測量風向的風標。Using outputs of ground temperature, vapor pressure, wind speed and low cloudage. middle cloudage as well as high cloudage from mm5v36, and ground direct radiation and out - going scattered radiation from modtran3
利用數值預報模式mm5v36輸出地面氣溫、水汽壓、風速和低雲量、中雲量及高雲量等氣象要素。利用大氣輻射傳輸模式modtran3 . 0輸出地面太陽直接輻射和射向天空的散射輻射以及總輻射。Most complete wireless weather coverage available : high and low day temperature in celsius or fahrenheit, weather type icon and text, real feel ( rf ) temperature ( what temperature really feels like ), wind direction, gust and speed in mph, km / h or m / s, uv index ( the sun ' s ultraviolet intensity level ), amount of day precipitations in in, cm or mm, pressure, visibility and more
最完整的無線天氣覆蓋可以利用:攝氏和華氏的溫度高低，天氣類型圖標和描述，實際感覺到的溫度（真正你感覺到的溫度） ，風向，風力和風速，時速或秒速，紫外線指數（太陽紫外線強度等級） ，降雨雪量精確到英寸，厘米，毫米，壓力可見的描述，還要其他的嗎Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied
本文針對電站風機性能監測系統研究較少的現狀，在實驗的基礎上分析了現場加裝進氣箱和由於安裝造成的導流器葉片開度不一致對風機性能曲線的影響，並在此基礎上採用無節流方法測量流量，以風機調節性能曲線為依據，建立了基於徑向基函數（ rbf ）神經網路的風機流量全程監測模型；以實驗室4 - 73no . 8d離心風機為研究對象，探討了rbf神經網路差壓模型在變轉速、變導流器開度和變管網阻力等工況下的應用精度和誤差分佈規律；最後用visualc + +語言開發了風機性能在線監測系統。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。Computational fluid dynamics ( cfd ) techniques are used to study and understand fluid behavior in tunnels. by simulating complex specific operational cases, we can educe velocity or flux distribution in tunnel under different ventilation and resistance situation and determine the favorable operational procedures of the erlang mountain tunnel ventilation in a fire case. comparison has been made between a simulation and experiment for some cases in order to prove the cfd model is powerful, so that enables the study of cases for which experimental data is not available
採用本文將隧道內的氣流看成是理想流體的一維恆定流動，通過對二郎山特長公路隧道半橫向通風系統建立隧道內的空氣動力學模型，利用計算機進行數值分析與計算，得出發生火災時，不同通風阻力條件下隧道中的風速分佈及流量分佈，並通過實驗室隧道模型實驗進行驗證與修正，依據研究結果給出了二郎山半橫向通風隧道的火災控制方案，從而解決了二郎山公路隧道通風對火災的控制問題，同時為半橫向通風公路隧道的火災通風提供科學的方法。Effect of atmospheric back - scattering ratio on measurement of wind velocity
大氣後向散射比對風速測量的影響With the electricity generated, the station automatically measures the wind and temperature there and sends the data back to hko by wireless transmission
該站只靠風力發電來維持站內儀器的運行，自動的量度風速風向及氣溫，並將資料經無線電傳送回天文臺。The experiment acquired pressure distribution and circulating rate under three fluidizing velocity ( 3. 5m / s 、 4. 5m / s 、 5. 5m / s ) and different media load. an experimental equation was acquired between circulating rate and the distribution of the pressure. and the relation between the circulating rate and the opening rate of the valve connecting the returner and the ehe was carefully discussed as well as the relation between the pressure of the ehe and the flow rate of the fluidizing air
得到三種流化風速下（ 3 . 5m / s 、 4 . 5m / s 、 5 . 5m / s ）不同裝料量所對應的主床床體壓力分佈和物料循環量，得到循環量與壓力的分佈和流化風速的本實驗臺上的經驗公式，並通過測量返料器通向外置換熱器機械閥開度和返料量的關系，得到旋風分離器中下落物料進入換熱器和直接進入主床的比例關系，同時測得換熱器中壓力和送風量的關系。5. seasonal variation of co total column in beijing is greatly affected by the major co source with similar season variation. the changes in co column amount are closely related to meteorological conditions, mainly including atmospheric stability, wind speed and wind direction
（ 5 ）北京市co柱總量的季節變化受人為主要排放源的季節變化影響很大; co濃度的變化和氣象條件關系緊密，影響co柱總量逐日變化和日變化的氣象因子主要有大氣穩定度和風速風向等。Measurement of pressure, temperature and humidity operated in much the same principle as the older version of radiosonde, but computation of wind was made use of the vlf ( very low frequency in the range of 10 - 13 khz ) signals of a world - wide navigational network, omega
該系統量度高空氣壓、氣溫及濕度的方法與舊式無線電探空儀大致相同，但在測風方面則採用了一種新的概念，利用世界性奧米茄導航站網的甚低頻信號（ 10 - 13khz ）來計算出高空風向和風速，無需用雷達追蹤探空儀位置。Scientists call them substorms, a part of larger storms of energy propelled from the sun at supersonic speeds toward earth and elsewhere in the solar system
科學家稱之為地磁亞暴，是太陽系中從太陽噴射出來的朝向地球和其它星球的超音速大型風暴能量的一部份。Directional sensitivity for the hot - wire measurements at very low wind velocity
極低風速下熱線測量的方向特性Storm motion vectors in the form of arrows with speed in knots indicating the movement of the precipitation areas are also shown in the display
從顯示亦可看到以箭頭表示，速度以海里每小時計的風暴運動向量，該向量顯示雨區的移動。Wind : most meteorological stations are equipped with combined vane and cup generator anemometers with dial indicator and or chart recorder for wind speed and direction measurement
風：大多數臺站都設置風向標及磁感風杯風速表來量度風向和風速，並附有刻度盤或圖表記錄器。Initially the loosely bound outer layers stream off the star at 10 to 20 kilometers per second ? a relatively slow outflowing wind that will carry the bulk of the nebula ' s eventual mass
最初，鬆散的外表會以每秒10 ~ 20公里的速度流出恆星，這些相當低速向外流出的風，終將掏空星雲整體的質量。The system uses the arrowhead to express the speed vector of wind field and uses the contour line and color cloud to express the height of wave field
風場風速矢量場採用方向箭頭實現可視化，並且可同步顯示氣壓場信息，海浪場可視化採用等高線、彩色雲圖、文本數值輸出，也可實現風場同步。分享友人