紊層流 的英文怎麼說

中文拼音 [wèncéngliú]
紊層流 英文
laminar-turbulent flow
  • : 形容詞(紊亂) disorderly; confused
  • : i 量詞1 (用於重疊、積累的東西 如樓層、階層、地層) storey; tier; stratum 2 (用於可以分項分步的...
  • : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
  1. The module was divided into sub - channels, and the hydrodynamics in each channel was just the function of the local cell packing fraction. based on the theoretical probability density distribution functio

    在裝填密度較小的時候,傾向十分明顯;當裝填密度較大的時候,殼程的動狀況與相對比較接近。
  2. Topics include : molecular and turbulent diffusion, boundary layers, dissolution, phase partitioning, bed - water exchange, air - water exchange, settling and coagulation, buoyancy - driven flows, and stratification in lakes

    探討課題計有:分子和擴散、邊界分、溶解、相之間的分割、底床與水間的交換作用、空氣與水間的交換作用、沉降和混凝、浮力以及湖泊分作用。
  3. Although the knowledge of wind effects on tall buildings has significantly improved over the last decades, an understanding of the mechanism that the atmospheric flow field to various wind include effects on structures has not been developed sufficiently for formulation of functional expressions. not only is the wind approaching a building complex, but the flow pattern generated around a building is complicated by the distortion of the mean flow field, the flow separation, the vortex formation, and the wake development

    在過去的幾十年裡,雖然人們對高建築風效應的了解已有顯著提高,但對大氣場與結構物各種風致響應的關系還不能用解析表達式加以描述。由於平均場的奇變、動分離、旋渦形成以及的發展,不僅使得向建築物的風,而且使得繞建築物的譜變得十分復雜。
  4. 3, based on the standard k - s model, the laterally - averaged 2 - d buoyant flow model to predict the water temperature of the huge and deep reservoir is developed

    四川大學工學博士學位論文3 .在標準車『模型的基礎上,建立了預測大型深水庫水溫分的立面二維浮力模型。
  5. Momentum integral equation of turbulent boundary layer on ogree section of spillway dam in considering the gravity and centrifugal force

    考慮重力及離心力的溢壩反弧段邊界動量積分方程
  6. The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments

    對歧管式單通道熱沉動特性的研究結果表明,微通道內態由轉變的臨界雷諾數提前;改變體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了動阻力的實驗關聯式。此外,選用十二烷基硫酸鈉( sodiumdodecylsulphate , sds )以及烷基多糖苷( alkylpolyglycoside , apg )作為減阻添加劑,研究了表面活性劑添加對微通道動特性的影響。
  7. The characteristics of flow field in boundary layer are different from that of laminar flow and turbulence. so, it was not ignored

    邊界雖很薄,但由於其水特性與一般的特性相差甚大,因而它對水的影響是不可忽略的。
  8. Topics include the principles of conservation of mass, momentum and energy ; hydrostatic behavior of floating and submerged bodies ; lift and drag forces ; dimensional anaylsis ; wave forces on ships and offshore platforms ; laminar and turbulent flows

    主題涵蓋質量守恆、動量守恆及能量守恆等原理、浮體及沈體之體靜力行為、升力、拖曳力、因次分析、船舶及離岸平臺上作用的波力、
  9. The velocity distributions, the relative mach number distributions and the flow trace distributions are visualized, and the reasons, which cause bad aerodynamic losses and make the flowfield complicated, are analyzed, including wake, secondary flow, separated flow and the interaction between shock and boundary layer

    顯示壓氣機內的速度場、相對馬赫數分佈及動跡線分佈等,並分析造成嚴重損失及使場趨于復雜亂的原因,包括尾跡、二次、分離及激波/附面干擾等現象。
  10. It uses the software of phoenics, imitating stratified air distribution of three - dimension turbulence in large space at many kinds of working at in k e pe in bo at arch wi m for ndds cut ords ed as pe of air ~ for wt pe of - w op of ~ nd we ch de ^ t wt the pe pe the pe ed co the bo of mp nd - - ds the for for the nd ~ or ~ for ds in tw pe bo inedwh edfor bo an all chwt to gr - - rpwhthe ~ oftw -, so ihat it co ha the ed ofds be all ghthemeedch

    使用phoenics軟體,對多種工況下高大廠房大空間分組織進行三維模擬。主要研究了高大廠房內的水平隔斷氣,分析送風噴口類型、送排風口位置、障礙物高度、地面干擾氣等因素對隔斷氣的影響。在經濟性和實用性上得到最優化的結果,為大空間變動塵源復雜氣的優化組織研究提供了參考。
  11. By analyzing flow status of fluid in aerating pipeline, giving up hydraulics and utilizing hydromechanics and advance numerical calculations, the prediction method to solve optimizations height on flow status in aerating pipeline is studied and put forward, which provides a scientific theory base to realize effective drag reduction and economic principle in blend phase transportation for pipeline design

    摘要通過分析摻入少量高粘體形成分動狀態,拋棄傳統的水力學研究方法,應用體力學原理、高級程序設計語言和先進的數值計算技術研究了摻入少量高粘體分減阻規律,為實現管道混相輸送時高效減阻和經濟節約的設計提供理論依據。
  12. The descending of the airplane, similar to the climbing, is operated by stages. flying through clouds is inevitable during descending, and the airing convection caused turbulence

    飛機的下降與上升一樣,是分段進行,下降時產生的顛簸可能是造成的,因為在下降過程中,常常不可避免地要穿過雲
  13. Pressure discharge relation of the simple orifice is exponential in air and soil. the flow regime of simple emitter is situated between laminar and turbulent

    簡易地下滴灌灌水器量壓力關系在空氣和土壤介質中都呈現較好的冪函數關系,其態介於之間。
  14. Turbulent bl structure : wake, wall layers. inner, outer variables. effects of roughness

    25邊界結構:尾,壁面,內、外變數。粗糙度效應。
  15. Based on the detailed and abroad investigation of the inland and overseas literatures three dimensional turbulence computation in recent 10 years, the vertical delaminating coefficient ko was introduced in normal - coordinate transform in this paper. this means = was used to displace the normal, which has been regularly used in the computation of 3d flow in recent years. the use of new coordinate is aimed to match the landform better and improve the instance that the normal coordinate mathematic models are emanative with complicated landform sometimes

    在對近年來國內外三維計算的有關文獻進行了細致的分析研究基礎上,本文將三維計算中常用的坐標變換加以改進,引入垂向分系數k _ 0 ,採用= k _ 0 ( z - ) d的變換方法,以期更好地與實際地形相匹配,改善常見坐標變換數學模型在地形復雜地區容易發散的問題,並給出了k _ 0的確定方法。
  16. Parameters influencing aerodynamic flows and transition and influence of boundary layers on outer potential flow are presented, along with associated stall and drag mechanisms

    而邊界理論受限於各種體種類的假設,像是可壓縮性、、維度和熱傳。
  17. The results show that rsm can accurately simulate the movement of the turbulent buoyant flow in reservoir and the anisotropic turbulence due to the thermal stratification. however, rsm is difficult in convergence, bad stability and more time consuming. rsm is suitable when the high accuracy is concerned and geometry boundary is simple

    結果顯示, rsm模型能精確模擬水庫中湍浮力運動規律和由於溫度分引起的動量的各向異性的特徵,但其收斂性、穩定性及經濟性較差,適用於計算精度要求較高且域邊界較為簡單的動。
  18. Moreover, this paper investigates the influences of surfactant aqueous solutions on flow characteristics of a mmc. sodium dodecyl sulphate aqueous solution and alkyl polyglycoside aqueous solution are used as working fluids. the experiment results indicate that the drag reduction depends on flow velocity and temperature ; the drag reduction effects aren ’ t very obvious in laminar flow region, but when fluid enter turbulent flow region, the drag reduction increase notably, the drag reduction effects

    研究結果表明,阻力減小率( dragreduction , dr )與速和溫度有關;區內表面活性劑的減阻效果不是特別明顯,但進入區后減阻效果開始增強,尤其進入旺盛的區后減阻效果大大增強;溫度提升也可增加dr ,但在溫度較高時添加sds后減阻效果的改善卻不及apg 。
  19. Bf bag filter works by the principle of microfiltration. the liquid is purified in bags by passing small permeable pores. bagfilters can be used for large amounts of water

    這樣液體可均勻分佈在整個濾袋的過濾表面,令整個面中的體分佈恆定一致,沒有的負面影響,過濾效果好。
分享友人