Turbulence Modeling for Sharpfin-Induced Shock Wave/Turbulent Boundary-Layer Interactions

Horstman, C. C.

doi:10.1007/978-3-642-84447-8_35

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…However in shock separated flows with large separation and turbulence, DNS, LES, or, RANS models have been unsuccessful in predicting surface heat transfer so far because of the numerical and modeling complexity in hypersonic interacting flow calculations [99]. Calculation of 3D interactions involving vortex formation, shock/vortex interaction and vortex breakdown is also an arduous challenge.…”

Section: Modes Of Transitionmentioning

confidence: 99%

Aero-Thermal Analysis of the Critical Factors in a Winged Reusable Launch Vehicle for Safer Re-Entry

Nag,

Senthil,

Balakrishnan

2023

joast

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This paper presents a brief review of the critical factors and phenomena involved in the aero-thermal analysis of a winged reusable launch vehicle. The heat flux evaluation for the re-entry phase is assessed based on the suitability of the available simulation techniques under diverse conditions. This is followed by a short description of the physics involved in each of the factors, their corresponding effects on the main objective and the usual and possible future strategies to deal with them. Finally, the ultimate thermal management of the vehicle surface is discussed based on the literature reviews and a comparative study is depicted showing the benefits over previous ideas. This work can be of use for further research on low wing loading effect to validate the reduction in heat flux and hence the aero-thermal loads thereby ensuring a safer and an affordable atmospheric re-entry for future space explorers.

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Section: Modes Of Transitionmentioning

confidence: 99%

Aero-Thermal Analysis of the Critical Factors in a Winged Reusable Launch Vehicle for Safer Re-Entry

Nag,

Senthil,

Balakrishnan

2023

joast

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“…Other papers dealing with similar problems are the studies of supersonic flow around cylinder junctions (Rizzetta, 1994) or the structure of the viscous flow with a swept planar shock wave generated by a sharp fin (Knight and Horstman, 1987). For this example, a systematic study of various turbulence models was done by Horstman ( 1991 ).…”

Section: Introductionmentioning

confidence: 99%

Blunt-fin induced interaction of wall shear layers in supersonic flow

Wiedermann¹

1997

Fluid Dyn. Res.

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The topic of this contribution is a numerical study of three-dimensional supersonic flow over a blunt fin mounted on a flat plate. The flow pattern is characterized by complex interaction of shock waves and the boundary layer along the plate surface. In this paper the steady-state results for two free stream Mach numbers M = 3 and 7 will be discussed and compared with experiments. For the numerical investigation a time-marching integration method has been applied based on a three-stage Runge-Kutta scheme. Several convergence acceleration techniques have been adopted. Since crisp shock fronts must be resolved for a proper computation of the interaction phenomena the mesh has been adapted in those regions where strong pressure gradients are expected. In addition, a special treatment of the artificial viscosity terms which enhances stability in regions with shocks has been introduced to achieve some upwind properties of the scheme which utilizes central differences for the spatial derivatives. For the simulation of turbulent flow algebraic models have been applied, namely, a Baldwin-Lomax model and a new turbulence model which is based on RNG-theory. The comparison with the experiments shows that for the case studied here the transitional character of the boundary layer has to be taken into account.

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Shock waves/turbulent boundary-layer interactions - Fundamental studies and applications

Zheltovodov

1996

Fluid Dynamics Conference

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Turbulence Modeling for Sharpfin-Induced Shock Wave/Turbulent Boundary-Layer Interactions

Abstract: Solutionsof the Reynolds-averaged Navier-Stokes equations are presented and compared with a family of experimental results for the three-dimensional interaction of a sharp-fin-induced

Cited by 3 publications

References 12 publications

Aero-Thermal Analysis of the Critical Factors in a Winged Reusable Launch Vehicle for Safer Re-Entry

Aero-Thermal Analysis of the Critical Factors in a Winged Reusable Launch Vehicle for Safer Re-Entry

Blunt-fin induced interaction of wall shear layers in supersonic flow

Shock waves/turbulent boundary-layer interactions - Fundamental studies and applications

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