Direct Numerical Simulation of turbulent Taylor-Couette flow
Abstract
The direct numerical simulation (DNS) of the Taylor--Couette flow in the fully turbulent regime is described. The numerical method extends the work by Quadrio & Luchini (Eur. J. Mech. B / Fluids, v.21, pp.413--427, 2002), and is based on a parallel computer code which uses mixed spatial discretization (spectral schemes in the homogeneous directions, and fourth-order, compact explicit finite-difference schemes in the radial direction). A DNS is carried out to simulate for the first time the turbulent Taylor--Couette flow in the turbulent regime. Statistical quantities are computed to complement the existing experimental information, with a view to compare it to planar, pressure-driven turbulent flow at the same value of the Reynolds number. The main source for differences in flow statistics between plane and curved-wall flows is attributed to the presence of large-scale rotating structures generated by curvature effects.
Keywords
Cite
@article{arxiv.0711.1429,
title = {Direct Numerical Simulation of turbulent Taylor-Couette flow},
author = {Davide Pirro and Maurizio Quadrio},
journal= {arXiv preprint arXiv:0711.1429},
year = {2009}
}
Comments
To appear in European Journal of Mechanics B / Fluids