backward facing step 中文意思是什麼

backward facing step 解釋
面向後突階
  • backward : adv 向後，在後，在後方；倒，逆；迴向原處。 lean backwards 往後靠。 spell backwards 倒拼；誤解，曲...
  • facing : n 1 【建築】飾面，面層，覆蓋面；敷面物，面料；面飾；墻面。2 （衣服等的）鑲邊，貼邊，滾條。3 【機...
  • step : vi （ pp ）1 走；跨步。2 踩，踏上 （on）。3 跳舞，輕快地走，合著步調走。4 跨入，踏進。5 走上。vt ...
  1. Comparison of flow regimes is made for different reynolds - number flows and mesh refinement. the current study for the laminar flow over a backward - step facing step explores the influence of the sidewall on the development of three - dimensional flow for re > 400. meanwhile, this paper attempts to study on some important aspects of time - dependent incompressible viscous flow

    本論文的主要研究成果有： 1 、評述了三維粘性流動數值模型的研究現狀，分析了各數學模型的建模思想及相應的數值計算方法，提出了當前存在的高精度的數值計算方法和邊界條件的適定性問題。
  2. In the numerical solution algorithm, the method of characteristics, analytic method and galerkin finite element method ( galerkin - fem ) can be chosen to solve the advective equation, diffusion equations, reaction ( source / sink ) equations, propagation equations and pressure poisson equation, respectively. the developed new algorithm has been verified using analytical solution of circular conduit flow in a reynolds number range of 100 < re < 1 000 and experimental data of the laminar flow over a backward - step facing step. the flow properties are well characterized by this three - dimensional numerical model

    本論文在評述三維粘性流動數學模型已有研究成果的基礎上，著重在數值計算方法的選擇和定解條件的給定對數學模型計算結果的影響進行了研究，並首次提出了求解三維純對流方程的高精度的擬協調單元法，建立了三維低雷諾數re流動的數學模型，並在圓管流動、臺階突擴矩形管道流動中得到驗證和應用。
  3. In a reynolds number range of 150 < 6500, a particle image velocimetry ( piv ) is used to measure and visualize the 2d flow over a backward facing step

    摘要利用粒子圖像測速技術（ piv ） ，對雷諾數150 < 6500范圍二維後向臺階的流動進行詳細觀測。
  4. A experimental study on the 2d time - average flow over a backward facing step via piv

    二維後向臺階流流動特性的實驗研究
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