The micro boundary layer experiment is carried out from 8mm to 14mm of a 15mm-long micro plane . re numbers vary from 35, 000 to 150, 000 and 4 different mach numbers are selected . some new characters are discovered, such as velocity curve factor is smaller than that of well developed normal scale turbulence boundary layer 微尺度平板邊界層實驗選取從總長度為15mm的微平板前緣8mm到14mm之間的7個站位,4種馬赫數(shù),13個不同雷諾數(shù)(從35000到150000)的實驗狀態(tài),發(fā)現(xiàn)了該尺度下邊界層流動的一些新的特點,如形狀因子比常規(guī)大尺寸下充分發(fā)展湍流狀態(tài)的形狀因子更小等。
We designed two kinds of diameter s-shaped curved arteries finite element numerical simulation geometric models in order to study the influence caused by the singular curved factor ( such as the curvature radius, the dean number ) to flow, and extract the characteristic flow form related to the curve 在總結(jié)和發(fā)展前人成果的基礎(chǔ)上,設(shè)計了兩種直徑的s型彎曲動脈有限元數(shù)值模擬幾何模型,以考察單一的彎曲因素(曲率半徑、dean數(shù)等)對流動的影響,以提取與彎曲相應(yīng)的特征流型。