local velocity 中文意思是什麼

local velocity 解釋
軌跡的流速
  • local : adj 1 地方的,當地的,本地的。2 局部的。3 鄉土的,狹隘的,片面的。4 【郵政】本市的,本地的;【鐵...
  • velocity : n. 1. 迅速;快速。2. 速度,速率。3. 周轉率。
  1. Sometimes temporal fluctuation may take place in the local velocity.

    有時,在局部速度中可能出現瞬時脈動。
  2. 3. a three - dimensional - acoustic doppler velocimeter has been used to measure the velocity and turbulence in a compound channel with vegetated and unvegetated flood - plains. particulary in the interface region between main channel and floodplain. the distribution in three coordinate directions of velocity and turbulence intensities and the renolds stresses are presented. the momentum transfer at the main channel flood - plain interface can be described as an apparent shear stress which can be quantified as a function of the local turbulence at the interface

    採用adv對灘地種樹前後灘槽交界區域的流速場進行了量測。分析了灘槽交界區域的垂線流速、紊動強度和雷諾應力的變化。將灘槽交界的動量傳遞描述為一表觀應力,這個表觀應力可以看作是交界面處的脈動函數並將其定量化。
  3. But in local region it is mainly controlled by the regulating structures. the planar velocity is of the parabola distribution

    模擬結果表明,整治河段水流的流速分佈主要受制於河道的平面兒何形態,局部區域航道整治建築物起主要作用。
  4. Secondly, the relation between nusselt number and the local time - averaged velocity and temperature fields of turbulent convection was theoretically induced, which expands the field - coordinated enhancement principle to turbulent convective heat transfer

    然後,在理論上導出了紊流對流換熱的整體換熱性能與局域時均速度場和時均溫度場的一般關系式,將對流換熱的場協同強化原則擴展至湍流換熱。
  5. In the suspended sediment transport model, the method of shear stress is adopted to determine the source function in the suspended sediment diffusion equation. through a series numerical experiments and statistical analyses of observed field data, a local coefficient, which can reflect the bottom material and consolidation, is introduced into the classic critical erosion velocity of the sediment

    懸沙輸運模型利用切應力方法來確定對流擴散方程中的泥沙源函數,其中的臨界起動速度利用經典的泥沙起動流速公式前面增加一個局地系數得到,這個系數能反映河床底質結構及固結程度,通過系列數值試驗和實測資料的統計分析確定。
  6. A technique of electric pins for measuring the above parameters is designed, aiming at deducing a real velocity of flyer and slant of impact from local records of pins signs through a certain arrangement of the pins

    本文採用電探針技術,給出了一個同時測得真實飛片速度和碰撞傾斜狀態的探針排布設計。
  7. Abstract : based on the mathematical models of roll speed for cross - rolling elongation process, the effects of toe angle on roll speed, local feed angle and local angular velocity, and also on material flow are analyzed. by the analysis, the toe angle can be optimized

    文摘:基於建立的斜軋延伸機軋輥速度模型,模擬分析了沿軋制方向和螺旋方向上輾軋角對軋輥速度、局部送進角、局部角速度的影響,進而分析了這些參數對金屬變形和流動的影響,據此可優化輾軋角。
  8. First, the complete machine is controlled by the germany siemens programmable local controller ( plc ). secondly, mitsubishi e - 540 variable frequency main shaft stepless speed regulation function is provided. thirdly, siemens chinese td - 200 text panel indicator is used for parameter set. the winding number, tension and velocity can be modifies at real time. in addition, the complete machine has high degree of automation. the work of filling in workpiece, clamping, moving workpiece to the winding position, winding, trimming and holding line head etc can be finished for one time

    參數設定採用西門子中文td - 200文本面板顯示器,可對匝數繞線張力、繞線速度參數進行實時修改。整機自動化程度高。從工件放入工件夾緊送工件至繞線位繞線剪線並夾住線頭… …一次性完成。
  9. Such as each type of series motor, automobile generator first, the complete machine is under control of mitsubishi programmable local controller ( plc ). secondly, the moving system of welding torch adopts stepping motor to drive the ball screw which realizes the functions of its variable velocity and position control

    本機是用於各類串激電機,汽車發電機等微特電機定子鐵芯焊接的專用設備。整機採用三菱可編程序控制器( plc )控制。焊槍運動系統採用步進電機拖動滾珠螺桿做上下可變速度及位置控制。
  10. The formula of calculating vibration velocity was established suitable for the local geology condition, which can sharply increase the calculation precision, ensure the safety of blasting construction and provide the reference for the future blasting

    建立了適合於當地地質條件的振動速度計算公式,從而大大提高了計算精度,確保了爆破施工的安全,為以後的爆破施工提供了參考依據。
  11. Synthetic aperture radar ( sar ) has been widely used in both military affairs and civilian fields because of its high - resolution, independence of both time and weather conditions, etc. usually, sar could only be used to detect and image static targets instead of moving targets for the reason that the position drifting will make local mistake in the general sar image, which is usually caused by the velocity of the moving targets in the ground range direction, and when it comes to the target with strong scatter coefficient right in the drifting position, the moving target could not be detected at all

    合成孔徑雷達( sar )由於其高解析度、全天時、全天候等優良性能,已經在軍事和民用領域得到越來越廣泛的應用。通常,合成孔徑雷達只能對靜止目標進行檢測和成像,動目標由於其徑向速度而在常規sar圖像中有一個位置偏移,使成像造成局部錯誤,而且當偏移處有強散射目標時,動目標將無法檢測。軍事上的應用也要求合成孔徑雷達能對運動目標進行有效地檢測和成像,因而運動目標檢測( mti )及其成像日益成為合成孔徑雷達領域研究的一個熱點。
  12. The analysis of the distributions of simulated strain and velocity shows that the fins are multi - step local deformed

    對模擬的應變分佈和速度分佈分析說明,齒成形的多道次局部成形規律。
  13. We may assume that there is no correlation between the local velocity of a liquid particle at a mathematical point inside the void space and the concentration gradient.

    我們可以假定,在空隙空間的一個數學點上液體質點的局部速度和濃度梯度之間無相關性。
  14. A migration velocity analysis method is proposed, in which the problem of velocity analysis is converted to the problem of determining the local maximums of the defined criterion function

    利用等時原理,把建立速度場問題轉化為求取判別函數的局部極值問題,可以利用優化方法求解此問題。
  15. The several ones that have more lager sensitivity to embankment settlement are found out. then, aimed at the traditional three - layer bp network ' s shortages : easily getting into local minimum value and slow convergence, the modification combined momentum method with self - adaptation study velocity is made, and one improved bp network is put forward. finally, according to the results from above sensitivity analyses, the nonlinear model main parameters of each natural layer in roadbed are approximately rectified using the improved bp network technology founded on its stronger nonlinear mapping capacity and the settlement measurements

    採用非線性有限元程序,對鄧肯-張模型中8個參數與路堤沉降的關系進行了詳細分析,找到了影響沉降的主要參數;接著,針對傳統的三層bp網路具有收斂速度慢、易陷入局部極小點等不足,對其進行了修正,提出了改進的bp神經網路模型;最後,根據上述靈敏度分析結果,基於改進的bp網路模型較強的非線性映射能力和前期沉降實測資料,對路基中各天然土層的非線性模型主要參數進行了反分析修正; ( 4 )路堤沉降計算一維法中考慮應力歷史、側向變形的研究。
  16. The hvac system did not work well in yifu library of beijing university of technology, so we have a local investigation. finally we found out the reason for “ cold in winter and hot in summer ”. in may eighth, we tested the temperature of reading room 、 office ; supply and return water temperature ; water flow and the velocity of fan coil units. we simulate the library with energyplus, which is developed by u. s. a, compared the simulation results with the true temperature and they anastomosed well. on the basis of good simulation results, we simulate the hot day in summer and the cold day in witer and get the temperature of the reading room and the office

    于空調系統開啟的條件下測試了館內各功能房間的溫度;供、回水溫度及流量;風機盤管的出風速度。又運用美國新一代能耗分析軟體energyplus對當日館內的溫度進行模擬,將模擬值與實測值進行比較,驗證兩者基本吻合。進一步模擬出夏季與冬季設計日圖書館內各功能房間的室內溫度,作為分析依據。
  17. In local model, the different kind of suspension girder ? i and rectangular beam make different field of velocity characteristic surrounding through two - dimensional velocity experiment. result display i has more influence to velocity around beam than rectangular beam

    文章同時進一步採用選進的投影尋蹤法對試驗數據作了優化處理,使其結果更加可靠,更具實用價值,以供同類型工程設計時參考
  18. Such a fixed grid is usually difficult to fit in with the change of wind velocity and pressure gradients in different areas of the actual wind flow, and consequently the local changes of flow condition and their effect on the building cannot be effectively caught

    這種網格通常很難適應實際風場中不同區域的風速、風壓等的梯度變化要求,從而無法有效地捕捉到局部復雜流動的變化情況及其對建築物產生的影響。
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