stationary flow 中文意思是什麼

stationary flow 解釋
平穩流定常流
  • stationary : adj. 不動的，靜止的，不變的；不增不減的，固定的，裝定的。n. 1. 不動的人，固定物。2. 〈pl. 〉駐軍。n. -ariness
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  1. So anew type of measurement and instrumentation is badly needed and developed which is suitable for non - centralized and stationary measurement based on this idea, this study take the new type of oilavater two - phase flow measurement and instrumentation development as the basic goal, cany out some theoretic exploration of measurement in order to improve oil / water two - phase flow well logging method and technique, and try to accomplish bom holdup and total flow rate measurement with one equipment simultaneously so as to push forward development of oilavater two - phase flow well logging

    本文正是基於這一思想，以開發新的油水兩相流測試儀器為目標，進行先期的測量理論探索，試圖從原理上改進油水兩相流測井方法和工藝，實現利用同種電學敏感原理同時完成持率和總流量的測量，推動油水兩相流測井技術的發展。
  2. At a low flow rate, fluid merely percolates through the void spaces between stationary particles.

    當流速低的時候，流體只是穿過靜止的顆粒之間的空隙。
  3. Optimal power flow using particle swarm optimization and non - stationary multi - stage assignment penalty function

    基於粒子群優化演算法和動態調整罰函數的最優潮流計算
  4. Except for types of stationary phase, components of mobile phase and types of detectors, other prescribed conditions under each type, such as internal radius and length of chromatographic column, brand of stationary phase, carrier granularity, flow speed of mobile phase, as well as proportion, column temperature, volume of incoming samples of different components of mixed mobile phase and sensitivity of detector can be appropriately changed to accommodate different chromatographic system and reach requirements for applicable test of the system

    各品種項下規定的條件除固定相種類、流動相組成、檢測器類型不得任意改變外，其餘如色譜柱內徑、長度、固定相牌號、載體粒度、流動相流速、混合流動相各組成的比例、柱溫、迸樣量、檢測器的靈敏度等，均可適當改變，以適應具體的色譜系統並達到系統適用性試驗的要求。
  5. Such as : the balance of elastic membrane, the heat conduction of stationary state, the incompressible potential flow, the problem of electrostatic field and magnetostatics field

    例如：彈性膜的平衡問題，穩定狀態的熱傳導問題，不可壓縮勢流問題，靜電場問題以及靜磁場問題。
  6. A labyrinth seal is a non - contacting circumferential seal utilizing a tortured path for flow between the stationary and rotating ( or reciprocating ) parts. the design utilizes a series of pressure drops to reduce the leakage

    迷宮密封是一種通過曲折通道增大流動阻力來實現封嚴的非接觸密封，通常用於密封氣體，廣泛應用於航空、能源、流體等領域的動力機械中。
  7. Fourth, the membrane recovering method was found within stationary tubular membrane elements and was compared with rotating flow by using experiment, that is, the unloading pressure recovering method is one of the most efficient method, it may reduce the auxiliary time, such as washing, backflush, reverse filtration, but the tubular membrane is washed or backflush or changed after the cycle period are accumulated numerous times

    第四、對旋轉流靜止管式膜的再生進行了實驗比較，並提出了旋轉流膜管可以通過卸壓再生，以減少膜管每次使用后的沖洗、反吹等輔助時間，採用該種方法再生的膜管其滲透通量完全能滿足要求，當循環使用一定次數后再進行或沖洗或反吹或更換新膜管。
  8. An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process

    飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力
  9. Stationary source emissions - determination of concentration and mass flow rate of particulate material in gas - carrying ducts - manual gravimetric method

    固定源散發.含燃氣煙道中顆粒物質濃度和質量流率的測定.人工重量分析法
  10. The exhaust system and muffler are simplified as a set of 1 - d pipes with non - isentropic flow and with variable sections. the partial differential equations of non - stationary flow are transferred into the stationary differential equations by means of the characteristic lines. these equations are solved by finite difference method

    在排氣管系的計算中將排氣管簡化為一組一維非等熵變截面管，並通過「特徵線法」將描述其運動的非定常流的偏微分方程轉化為常微分方程，再用差分數值方法依靠計算機求解。
  11. Some new and interesting conclusions are obtained as follows : there exists evident difference on the flow behaviors and heat transfer between rotating curvilinear pipe and the stationary curvilinear

    結果表明：旋轉曲線管道內充分發展的流動結構和與靜止曲線管道存在著明顯差別。
  12. ( 3 ) when f is about fr, the secondary flow reaches its weakest intensity, but has a most complicated structure. for co - rotation and counter - rotation in which the centrifugal force dominates the flow, the secondary flow in a rotating helical pipe has the same direction with that in a stationary one. for counter - rotation in which the coriolis force dominates the flow, the secondary flow has the opposite directions to that in a stationary one

    （ 3 ） f在fr左右（離心力和科氏力相當的負旋轉） ，二次流強度最弱，但結構最復雜；對于正旋轉和離心力占優的負旋轉，二次流速度的方向和靜止的情況相同；對于科氏力占優的負旋轉，二次流速度的方向和靜止的情況相反。
  13. The particle simulation of the plume flow exhausted from the stationary plasma thruster

    穩態等離子體推進器羽流的粒子模擬
  14. In view of the non stationary feature of the pressure difference fluctuation signal in the gas - liquid two phase flow, a flow pattern identification method was proposed based on the characteristic vector from the singular value of the matrix formed by the multi dimensional continuous wavelet transform values of the fluctuation signal

    摘要針對氣液兩相流壓差波動信號的非平穩特徵，提出了以多尺度連續小波變換值矩陣的奇異值為特徵矢量的流型識別方法。
  15. When the rotation has the same direction with the axial velocity, the effect of rotation enforces the intensity of secondary flow and the heat convection, the friction factor and the nusselt number increases as f increase ; when the rotation has the opposite direction with the axial velocity, the flow structure becomes more complicated, for f = 1. 2, the complicated structure of secondary flow generates, the friction facior and nusselt number almost has the same value of stationary straight pipe

    當旋轉方向和主流方向相同時，旋轉的作用加強了二次流的強度，使得管道摩擦系數變大，管道換熱效果增強；當旋轉方向和主流方向相反時，管道內流動結構變化十分明顯， f - 1 . 2時，流動結構最為復雜，摩擦系數降至最低，換熱效果最弱。
分享友人
分享到 Line

分享到臉書