Numerical simulation of aerodynamics of simple geometries using approximate calculation of flow through the facet of the computational cell using the AUSM±up2 method

A three-dimensional distribution of a high-velocity gas flow around simple geometric models on an unstructured grid was calculated. The obtained results were verified.
It was realized by using HySol computer code and UST3D family of computer codes, which implement the donor cell method and schemes of the AUSM family of algorithms for calculating flows through the facet of the computational cell. These codes were developed in IPMech RAS. They are based on the model of a viscous compressible heat-conducting gas, which is described by a spatial non-stationary system of Navier-Stokes equations, solved on three-dimensional unstructured tetrahedral meshes.

AUSM+-up2 scheme, Navier-Stokes equations, perfect gas, unstructured mesh, cross-verification.

Volume 23, issue 1, 2022 year

Численное моделирование аэродинамики простых геометрий с использованием приближенного вычисления потоков через грань расчетной ячейки методом AUSM±up2

Проведено трехмерное численное моделирование обтекания высокоскоростным потоком газа простых геометрических моделей на неструктурированной сетке. Была произведена верификация полученных результатов.
Для численного моделирования использовались компьютерный код HySol и семейство компьютерных кодов UST3D, реализующих метод донорных ячеек и схемы семейства AUSM алгоритмов для вычисления потоков через грань расчетной ячейки. Данные коды были разработаны в ИПМех РАН. В основе кодов лежит модель вязкого сжимаемого теплопроводного газа, которая описывается пространственной нестационарной системой уравнений Навье-Стокса, решаемой на трехмерных неструктурированных тетраэдральных сетках.

схема AUSM+-up2, уравнения Навье-Cтокса, совершенный газ, неструктурированная сетка, перекрестная верификация

Volume 23, issue 1, 2022 year

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