Modeling of a Supersonic Flow around a Cylinder with a Gas-Permeable Porous Insert
S. G. Mironov1,2, A. A. Maslov1,2, T. V. Poplavskaya1,2, S. V. Kirilovskiy1,2
1Novosibirsk State University, Novosibirsk, 630090 Russia
2Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: сверхзвуковое обтекание, газопроницаемые пористые материалы, численное моделирование, эксперимент, supersonic flow, gas-permeable porous materials, numerical simulation, experiment
Abstract
Results of an experimental and numerical study of a supersonic (M∞ = 4.85) flow around a streamwise-aligned cylinder with a gas-permeable porous insert on the frontal face in the range of Reynolds numbers ReD = (0.1−2.0) · 105 are presented. The numerical study is performed by using the Ansys Fluent software system and a porous medium model based on a quadratic law of filtration. The parameters of the quadratic dependence are calculated on the basis of experimental data for an air flow in a porous material. Flow fields are obtained, and the wave drag of the model is calculated as a function of the porous insert length and the Reynolds number. Results of numerical simulations are compared with wind tunnel measurements.
|
