Title

Vortical flow structures behind a torus with an aspect ratio of three

Document Type

Article

Publication Date

8-1-2019

Publication Title

Flow Measurement and Instrumentation

Volume

68

Keywords

Torus, Turbulent, Vortex shedding, Wake

Abstract

A torus could replace an orifice flow meter with the benefit of a lower pressure loss. The flow structure of a torus with an aspect ratio of three was scrutinized in a wind tunnel. This study details the vortical structures at 5, 7, 10 and 15 core diameters downstream of the torus. This paper also studied the drag coefficient of the torus. The Reynolds numbers based on core diameter and free stream velocity are 9 × 103, 1.2 × 104 and 1.5 × 104. Of particular interest is the resulting Strouhal number through the opening. This was evaluated through detailed flow turbulence characterization.

DOI

10.1016/j.flowmeasinst.2019.101571

ISSN

09555986

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