The Properties and the Role of Small Scales in high Re turbulent pipe flow EuHIT Funded Project

Team

Gabriele Bellani
university of bologna, Forlì, Italy
Youry Borisenkov
Tel Aviv University, Tel Aviv, Israel
Grigori Gulitski
University of Tel Aviv, Tel Aviv, Israel
Michael Kholmyansky
Tel-Aviv University, Tel-Aviv, Israel
Alessandro Talamelli
University of Bologna, Forlì, Italy

Overview

Research Infrastructure
Center for International Cooperation in Long Pipe Experiments, Italy
Facilities used
Long Pipe Facility (LP)
Project leader
Arkady Tsinober Tsinober
Tel Aviv University, Tel Aviv, Israel

Abstract

The main goal of the proposed project is to study the properties and the role of small scales (as exhibited by the field of velocity derivatives) in high Re turbulent pipe flow and their bidirectional interaction with the rest of the flow. This is intended to achieve via performing experiments in the CICLoPE [1] employing a system developed in Tel Aviv University. The main features in these experiments are the use of a micro-fabricated probe [2] with an overall scale about 0.6 mm, and the ability of access - along with the three velocity components - to all nine components of the space derivatives tensor, the first and unique attempt to apply such technique in a pipe flow. On the technical side we will perform a number of new tests of the probe performance in the pipe flow conditions especially in the proximity of the wall.