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Modeling of unsteady subsonic flow around an axisymmetric body with a turbulator

Modeling of unsteady subsonic flow around an axisymmetric body with a turbulator The results of numerical simulation of external subsonic unsteady flow around an axisymmetric model are presented. The simulation uses a quasi-gas-dynamic algorithm implemented on an unstructured tetrahedral grid. A turbulator in the annular flap shape is allocated on the model surface: it sets the position of a laminar-turbulent transition. The problem statement corresponds to experiments for this model placed in a wind tunnel. The overall flow pattern, the distribution of the pressure coefficient on the surface, and the turbulent pulsation parameters demonstrate fair qualitative and quantitative agreement with the experimental data. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Modeling of unsteady subsonic flow around an axisymmetric body with a turbulator

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Publisher
Springer Journals
Copyright
Copyright © I.A. Shirokov and T.G. Elizarova 2022
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/s0869864322010024
Publisher site
See Article on Publisher Site

Abstract

The results of numerical simulation of external subsonic unsteady flow around an axisymmetric model are presented. The simulation uses a quasi-gas-dynamic algorithm implemented on an unstructured tetrahedral grid. A turbulator in the annular flap shape is allocated on the model surface: it sets the position of a laminar-turbulent transition. The problem statement corresponds to experiments for this model placed in a wind tunnel. The overall flow pattern, the distribution of the pressure coefficient on the surface, and the turbulent pulsation parameters demonstrate fair qualitative and quantitative agreement with the experimental data.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Jan 1, 2022

Keywords: quasi-gas-dynamic (QGD) equations; subsonic flow; laminar-turbulent transition

References