HPIV based volumetric 3D flow description in the roughness sublayer of a turbulent channel flow

Siddharth Talapatra; Joseph Katz

HPIV based volumetric 3D flow description in the roughness sublayer of a turbulent channel flow

ORAL

Abstract

Microscopic HPIV is utilized to resolve the 3D flow in the roughness sublayer of a boundary layer over a rough wall at Re$_{\tau}$=3400, consisting of pyramidal elements with height of $k$=0.45mm and 3.3mm wavelength. Typically, $\sim $7000 particles are tracked in a 3.2$\times $2.1$\times $1.8mm$^{3}$ volume, whose wall-normal extent is -0.2$

Nov. 20, 2011, 5:45 PM – Nov. 20, 2011, 5:58 PM

Authors

Siddharth Talapatra
Joseph Katz

The Johns Hopkins University, Mechanical Engineering and CEAFM, Johns Hopkins University, Johns Hopkins University, Department of Mechanical Engineering, The Johns Hopkins University