Mean velocity equation for fluctuating flow: Numerical evaluation for small Reynolds numbers
Juergen Piest
TL;DR
This paper numerically evaluates the mean velocity equation for fluctuating flow in circular jets at low Reynolds numbers, highlighting deviations from Navier-Stokes solutions as Re exceeds 30.
Contribution
It applies a previously derived mean velocity equation to low Reynolds number jet flows and compares numerical solutions with Navier-Stokes results.
Findings
Deviations between the mean velocity equation and Navier-Stokes solutions become significant for Re > 30.
Numerical solutions obtained through iterative methods.
The study extends understanding of fluctuating flow behavior at small Reynolds numbers.
Abstract
The mean veloctiy equation for fluctuating flow derived in an earlier paper of the author has been applied to circular jet flow for low Reynolds numbers. Numerical solutions have been obtained from an iteration starting with the corresponding solution of the Navier-Stokes equation. Deviations become distinct for Re > 30.
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