Finite Volume Analysis of a Supersonic Non-Equilibrium Flow Around an Axisymmetric Blunt Body

Abstract

The aim of this work is to analyze high temperature flows around an axisymmetric blunt body taking into account chemical and vibrational non-equilibrium state for air mixture species. For this purpose, a finite volume methodology is employed to determine the supersonic flow parameters around the axisymmetric blunt body. This allows the capture of a shock wave before a blunt body placed in supersonic free stream. The numerical technique uses the flux vector splitting method of Van Leer. Here, adequate time stepping parameters, along with Courant, Friedrich, Lewis coefficient and mesh size level are selected to ensure numerical convergence, sought with an order of 10

Physico-chemical state of the air at the stagnation point during the atmospheric reentry of a spacecraft

“…The y considerati and the ene sidue of the re is no chang . For more details see haoui [15]. accuracy requirements, computational convergence is achieved and the physical phenomena considered are visible after the detached shock wave and around the blunt body.…”

Design of the propelling nozzles for the launchers and satellites

“…We will test the profile found by the characteristics method with our computer code, by using the finite volume method of Van Leer [2], Haoui et al [3], and Haoui [4], in order to determine the flow parameters in the nozzle, which starts by a convergence of conicity 45°, followed by an arc of a circle to the throat. The convergent is connected to the divergent profile found by the characteristics method.…”