Direct Numerical Simulation of Turbulent Channel Flow with Riblets at Low Reynolds Number

TL;DR

This paper presents direct numerical simulations of turbulent channel flow with riblets at low Reynolds numbers, demonstrating the use of OpenFOAM for unstructured mesh simulations and discussing drag reduction effects.

Contribution

It introduces DNS of riblet-covered turbulent flows using OpenFOAM, highlighting the simulation setup and results at low Reynolds numbers.

Findings

DNS results on riblet effects in turbulent flow

Use of OpenFOAM for unstructured mesh simulations

Presented at European Drag Reduction Meeting 2015

Abstract

In this report we briefly summarize the set-up and results for direct numerical simulations (DNS) of turbulent channel flows with riblets. The DNS are carried out with OpenFOAM which allows the use of an unstructured mesh. The present results were presented at the European Drag Reduction and Flow Control Meeting in 2015.