Self-sustained oscillations in the flow past a circular cylinder with splitter plate
- 1 January 2022
- journal article
- Published by Taras Shevchenko National University of Kyiv in Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics
- No. 1,p. 44-49
- https://doi.org/10.17721/1812-5409.2022/1.5
Abstract
The problem of generation of self-sustained oscillations in the flow past a circular cylinder with a splitter plate is solved numerically. We investigate both the transient process and the steady periodic vortex shedding behind the cylinder. The evolution of the vorticity field is shown for various length of the splitter plate. It is demonstrated that the splitter oriented along the flow direction significantly reduces the forces applied to the cylinder. With increasing splitter length the average drag decreases monotonically but the amplitudes of oscillation of the forces applied to the body change nonmonotonically. In this paper we offer our explanation of this phenomenon. It is shown that when turning the splitter plate at some angle from the flow direction the process of vortex formation and shedding behind the cylinder is no longer strictly regular and periodic.Keywords
This publication has 9 references indexed in Scilit:
- Experimental study on the confined flow over a circular cylinder with a splitter plateFlow Measurement and Instrumentation, 2016
- Numerical investigation of flow around circular cylinder with splitter plateKSCE Journal of Civil Engineering, 2015
- Control of laminar vortex shedding behind a circular cylinder using splitter platesPhysics of Fluids, 1996
- Flow in the wake of a freely rotatable cylinder with splitter plateAIAA Journal, 1991
- Discrete vortex simulation for flow around a circular cylinder with a splitter plateJournal of Wind Engineering and Industrial Aerodynamics, 1990
- Oblique and parallel modes of vortex shedding in the wake of a circular cylinder at low Reynolds numbersJournal of Fluid Mechanics, 1989
- The effects of wake splitter plates on bluff-body flow in the range 104 < R < 5 × 104. Part 2Journal of Fluid Mechanics, 1975
- The effects of wake splitter plates on the flow past a circular cylinder in the range 104<R4Journal of Fluid Mechanics, 1973
- The mechanics of the formation region of vortices behind bluff bodiesJournal of Fluid Mechanics, 1966