The roughness was stochastic with positive skewness, and the ratio of the boundary layer thickness, δ, to the root-mean-square roughness height varied from 55 to 141. The equivalent sandgrain roughness height, ks, was approximately 4 times the rms roughness height. In the outer region of ...
英[ˈbaundəri ˈleiə ˈθɪknɪs] 美[ˈbaʊndəri ˈleɚ ˈθɪknɪs] 释义 边界层厚度 实用场景例句 全部 Theboundary layer thicknessis a function of the convection condition, in the melt. 边界层厚度是溶体中对流条件的函数. ...
layer thickness meter 膜层测定仪,镀层测厚仪 相似单词 thickness n. 1.厚;厚度;粗 2.浓度;密度 3.层 4.最厚的部分;最浓密处 boundary n. [C] 1.边界,分界线(+between) 2.界限,范围 layer n.[C] 1. 层(尤指数层中之一) 2.产卵鸡;卵用鸡 3.(园艺)压条 v.[T] 1.将某物积成层 2....
Boundary layer thickness refers to the thickness of a fictive layer where the flux is maintained solely by molecular transport. It is extremely thin, ranging from 10 to 350 μm, and is determined by the intercept of the tangent to the concentration profile at the surface and the bulk. ...
Hey, When doing the boundary layer correction first the normal boundary layer thickness is calculated and from that the boundary layer displacement
1)boundary layer thickness边界层厚度 1.The analysis result of velocity distribution and boundary layer thickness is put forward in the boundary layer and cored region for laminar and turbulent flow of pipeline.采用动量积分方法推出了管道流动中的速度边界层方程,给出了管道层流和紊流时速度边界层和核心区...
In comparison to the lower branch solution, the boundary layer thickness decreases in the case of upper branch solution. Furthermore, under the given slip parameter and mass suction parameter, one can see the increasing velocity boundary thickness with the increase in proportional shearing parameter....
1a). The conventional, vane-type VGs have height h on the order of the boundary layer thickness δ. Thus, they transfer high-momentum air, from the outer flow, to the wall region. However, some drag appears because of their dimensions, which partially counter balances their benefits. ...
To decrease the chattering phenomenon of the VSC, a boundary layer is commonly introduced. Then its thickness requires a compromise between the steady state error and the chattering amplitude. In this paper, we propose a new VSC that tunes the boundary layer thickness using the fuzzy logic ...
2) boundary layer thickness 边界层厚度 1. The analysis result of velocity distribution and boundary layer thickness is put forward in the boundary layer and cored region for laminar and turbulent flow of pipeline. 采用动量积分方法推出了管道流动中的速度边界层方程,给出了管道层流和紊流时速度边界...