The University of Southampton
University of Southampton Institutional Repository

Acceleration in turbulent channel flow

Chen, L., Coleman, S.W., Vassilicos, J.C. and Hu, Zhiwei (2010) Acceleration in turbulent channel flow Journal of Turbulence, 11, (41), pp. 1-23. (doi:10.1080/14685248.2010.510842).

Record type: Article


We use Direct Numerical Simulations of turbulent channel flow to study the acceleration A corresponding to the full fluid velocity u and the acceleration a corresponding to the fluctuating velocity u? ? u?hui where hui is the mean flow. The mean acceleration hAi = hai is not zero, and the fluctuations of the convective and local parts of hAi around their means approximately cancel in the intermediate log-like layer. The motions of stagnation points where u? = 0 are controlled by a. In this intermediate layer, the fluctuations of a around its mean come predominantly from the fluctuations of its local part. Stagnation points move with an average velocity which equals the average fluid velocity at these points. The fluctuations around this average stagnation point motion decrease in the log-like layer with increasing distance from the wall.

PDF accn_channel.pdf - Other
Download (1MB)

More information

Published date: 2010
Organisations: Aerodynamics & Flight Mechanics


Local EPrints ID: 155631
ISSN: 1468-5248
PURE UUID: 0e237984-da3d-492c-9461-bb7ed37277a7

Catalogue record

Date deposited: 28 May 2010 14:31
Last modified: 18 Jul 2017 12:44

Export record



Author: L. Chen
Author: S.W. Coleman
Author: J.C. Vassilicos
Author: Zhiwei Hu

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.