Direct numerical simulation of flow in a flat channel with a rectangular step based on the nonstationary Navier-Stokes equations

A numerical study of the flow structure in a flat channel in a zone with a rectangular step is presented. The calculations are based on the complete system of nonstationary Navier-Stokes equations in the velocity-pressure variables by the differential settling method. The two-step implicit Peaceman...

Full description

Saved in:
Bibliographic Details
Main Authors: Navruzov, D. P., Madaliev, M. E., Pulatov, T. R., Juraev, S. R., Boltayev, S. A.
Format: Conference Proceeding
Language:English
Subjects:
Coefficient of friction
Differential equations
Direct numerical simulation
Fluid flow
Navier-Stokes equations
Reynolds number
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A numerical study of the flow structure in a flat channel in a zone with a rectangular step is presented. The calculations are based on the complete system of nonstationary Navier-Stokes equations in the velocity-pressure variables by the differential settling method. The two-step implicit Peaceman -Rachford scheme is used for the numerical solution of the Navier-Stokes equations. As a result, the velocity and pressure fields are investigated, the vortex structure of the circulation flow in the region behind the step is studied, and the length of this zone is determined depending on the Reynolds number and the coefficient of friction on the channel wall.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0135306