DEVELOPING PULSATING SMALL-AMPLITUDE LAMINAR FLOW IN A RECTANGULAR CHANNEL

被引：0
|
作者：
Purdin, M. S. [1 ]
机构：
[1] Natl Res Univ, Moscow Power Engn Inst MPEI, 14 Krasnokazarmennaya Str, Moscow 111250, Russia
来源：
JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS | 2021年 / 94卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
hydrodynamics; pulsations; rectangular channel; developing laminar flow;
D O I：
10.1007/s10891-021-02407-5
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The method of numerical simulation of the hydrodynamics of a developing steady-state pulsating small-amplitude laminar flow of an incompressible Newtonian liquid in a rectangular microchannel is presented based on the boundary-layer theory. The simulation was carried out for flow with Re = 100-2000. Distributions of the coefficients of hydraulic resistance and of skin friction of flow along the channel length are obtained. Conclusions are drawn on the length of the initial hydrodynamic segment and on the changes in the amplitude and phase of vibrations of the hydraulic resistance and skin friction coefficients and of longitudinal velocity. The distribution of the shear stress, as well as of its amplitude and phase over the channel perimeter, has been determined.
引用
收藏
页码：1266 / 1277
页数：12
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