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This article is cited in 6 scientific papers (total in 6 papers)
Heat and Mass Transfer and Physical Gasdynamics
Comparative analysis of calculated and experimental data on an oscillating flow induced by the gasdynamic interaction of a particle with a shock layer
D. L. Reviznikova, A. V. Sposobina, I. E. Ivanovab a Moscow Aviation Institute (National Research University)
b Lomonosov Moscow State University
Abstract:
A supersonic flow around a cylinder with a flat end is studied for the case in which a single particle is launched from the end surface towards the incident flow. Numerical modeling is carried out with allowance for the gas-dynamic interaction of the particle with the shock layer. High-resolution, adaptive, rectangular grids are used to obtain detailed spatial and temporal flow patterns. The calculation results are compared with experimental data. It is shown that a single, large particle moving along the axis of symmetry against the incident flow and crossing the bow shock wave causes a significant restructuring of the flow and the formation of complex shock-wave and vortex structures. An important role in the formation of the flow structure is played by the formation of a toroidal vortex, which leads to an “inviscid” separation of the incident flow from the axis of symmetry. A distinctive feature of the flow around a cylinder with a flat end is the oscillatory flow regime caused by alternating stages of growth and decay of a toroidal vortex. The patterns of the oscillating flow and the oscillation frequency obtained via numerical simulation are in good agreement with the experimental data.
Received: 11.03.2020 Revised: 15.06.2020 Accepted: 18.06.2020
Citation:
D. L. Reviznikov, A. V. Sposobin, I. E. Ivanov, “Comparative analysis of calculated and experimental data on an oscillating flow induced by the gasdynamic interaction of a particle with a shock layer”, TVT, 58:6 (2020), 901–908; High Temperature, 58:6 (2020), 839–845
Linking options:
https://www.mathnet.ru/eng/tvt11413 https://www.mathnet.ru/eng/tvt/v58/i6/p901
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