Asian Journal of Mathematics and Computer Research
 

Asian Journal of Mathematics and Computer Research, ISSN No. : 2395-4205 (Print), 2395-4213 (Online), Vol.: 20, Issue.: 4

Original Research Article

TURBULENT THERMOCHEMICAL NON-EQUILIBRIUM REENTRY FLOWS IN 2D – ELEVEN SPECIES

 

EDISSON SÁVIO DE GÓES MACIEL1* AND CLÁUDIA REGINA DE ANDRADE2

1Instituto Tecnológico de Aeronáutica (ITA) – Rua Santa Clara, 245 – Caixa Postal: 2029 – 12.243-970 – São José dos Campos – SP, Brazil.

2Instituto Tecnológico de Aeronáutica (ITA) – Praça Mal. do Ar Eduardo Gomes, 50 – 12.228-900 – São José dos Campos – SP, Brazil.

Abstracts

In this work, a study involving the third- and fourth-order ENO procedures using the Newton interpolation process from Harten et al. has been presented. The Favre averaged Navier-Stokes equations, in conservative and finite volume contexts, employing structured spatial discretization, are studied. Eleven species chemical models, based on the works of Dunn and Kang, and of Park are considered for the numerical experiments. Turbulence is taken into account considering the implementation of three k-ω two-equation turbulence models, based on the works of Coakley; Wilcox; and Yoder, Georgiadids and Orkwis. The “hot gas” hypersonic flow along a blunt body is the numerical experiment for comparisons. The results have indicated that the Coakley turbulence model yields the best prediction of the stagnation pressure value, although the Yoder, Georgiadids and Orkwis turbulence model has presented the best computational performance.

Keywords :

Favre-averaged Navier-Stokes equations; Turbulent flow; Coakley turbulence model; Wilcox turbulence model; Yoder; Georgiadids and Orkwis turbulence model.