Vortical flow structures behind a torus with an aspect ratio of three
Flow Measurement and Instrumentation
Torus, Turbulent, Vortex shedding, Wake
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.
Yan, Xueying; Carriveau, Rupp; and Ting, David S.K.. (2019). Vortical flow structures behind a torus with an aspect ratio of three. Flow Measurement and Instrumentation, 68.