Holographic near wall measurements in a high Reynolds number turbulent pipe flow EuHIT Funded Project

Team

Omid Amili
University of Minnesota, Minneapolis, United States
Gabriele Bellani
university of bologna, Forlì, Italy
Christophe Cuvier
Laboratoire de Mécanique de Lille, Villeneuve d'Ascq, France
Michael Phillip Eisfelder
Monash University, Clayton, Australia
Tommaso Fiorini
Università di Bologna, Forlì, Italy
Norbert Graf
InnoLas Laser GmbH, Krailling, Germany
Joachim Klinner
DLR, Köln, Germany
Julio Soria
Monash University, Melbourne, Australia
Christian Willert
German Aerospace Center (DLR), Koeln, Germany

Overview

Research Infrastructure
Center for International Cooperation in Long Pipe Experiments, Italy
Facilities used
Long Pipe Facility (LP)
Project leader
Michel Stanislas
Ecole Centrale de Lille, Villeneuve d'Ascq, France

Abstract

Near wall turbulent flows at high Reynolds number are of great interest from a practical point of view. The CICLoPE pipe flow facility offers unique possibilities to characterize this type of high Reynolds number wall-bounded flow with a relatively large length scale. The objective of the project is to use the recent developments in digital microscopic holography to perform 3C-3D velocity measurement at the wall with high spatial resolution. The aim of this project is to obtain statistics on the turbulent wall friction and the velocity fluctuations very close to the wall at high Reynolds numbers. Since this type of measurement has never been performed using this technique under these condition, they will be validated with a reliable 2C-2D micro PIV technique, which is quite novel it its own right and was recently demonstrated in another EUHIT project, providing time resolved data, thus also complementing the holographic data.