Shock wave boundary layer interactions in hypersonic flows over a double wedge geometry by using conjugate heat transfer

Peetala, Ravi K.; Kulkarni, Vinayak; Sahoo, Niranjan

doi:10.1002/htj.21905

Cited by 3 publications

(1 citation statement)

References 29 publications

(42 reference statements)

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“…The properties of the wall materials used in the present investigations are given in Table 1. CHT solver is validated with experimental data on flow over cylinder and double wedge problems [18][19][20] Table 1 Different materials used for composite solid domain.…”

Section: Computational Strategy For Flow Over a Composite Flat Plate ...mentioning

confidence: 99%

Transient Heat Transfer Analysis on Composite Solids for Hypersonic Flow Applications

Peetala

2022

Trends Sci

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Surface heating rates have the importance in high speed flow due to viscous or aerodynamic heating which leads to enormous rise in surface temperature. Prediction of exact heat transfer rates is essential for design of protection systems for aerodynamic bodies aimed. For the thermal protection system, the aerodynamic Surfaces are generally configured with multiple solids. Hence present study is planned to develop the conjugate heat transfer (CHT) solver for composite solids. A CHT solver is in hypersonic flow environment. Finite volume framework and explicit time stepping have been implemented for both the compressible Navier-Stokes solver and conduction solver. Loose coupling has been established between the above mentioned fluid and solid domain solvers. The following observations were made in the CHT simulations. In the case of hypersonic flows over finite thickness flat plate, considerable difference in surface heat transfer rate has been noticed along the stream wise direction at the solid-fluid interface and also the Effect of wall material on heat diffusion for hypersonic application has been analyzed using loosely coupled CHT solver. The CHT solver has also been implemented for hypersonic flow over composite cylinder. Necessity of insulating material in the region of stagnation point has been realized as the outcome of these studies. HIGHLIGHTS Accurate prediction of Convective heating rates is essential for the design of thermal protection system for hypersonic vehicles In The thermal protection system, the aerodynamic surfaces are generally configured with multiple solids. Hence the present study is planned to develop the conjugate heat transfer (CHT) solver for composite solids The CHT solver has been implemented for hypersonic flow over composite flat plate and cylinder. It has been observed flows over finite thickness flat plate, a considerable difference in surface heat transfer rate has been noticed along the stream wise direction at the solid-fluid interface and the necessity of insulating material in the region of stagnation point has been realized as the outcome of these studies GRAPHICAL ABSTRACT

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Section: Computational Strategy For Flow Over a Composite Flat Plate ...mentioning

confidence: 99%

Transient Heat Transfer Analysis on Composite Solids for Hypersonic Flow Applications

Peetala

2022

Trends Sci

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Self-similar analysis of gas dynamics for van der Waals gas in slipping flow after normal shock wave

et al. 2023

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A self-similar model of gas dynamics and heat transfer behind the shock wave was developed with allowance for the effects of slippage and dissipation. The model takes into account the impact of the following factors: shock wave intensity ( U∞/ Us), physical properties (Prandtl number Pr), thermodynamic gas properties (van der Waals numbers Wa a, Wa b), slippage effects (Knundsen number Kn), and dissipation (Brinkman number Br), as well as the relation of the temperatures of the flow and the wall ( T0/ Tw). The numerical solution was performed with the help of MATLAB software, as well as an in-house code written using the programming language C++ to verify the accuracy of calculations. The study demonstrated that for the case at hand, the Reynolds analogy holds under the influence of all mentioned factors provided that Pr = 1, except for the conditions when the effects of mechanical energy dissipation become significant. The paper presents the results of calculations of the velocity and temperature profiles, friction, and heat transfer coefficients (Nusselt numbers).

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Investigation of Fully-Coupled Conjugate Heat Transfer and Shock-Wave/Boundary-Layer Interactions using LES

Müller

Johnson

Oefelein

2023

AIAA AVIATION 2023 Forum

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Shock wave boundary layer interactions in hypersonic flows over a double wedge geometry by using conjugate heat transfer

Abstract: Shock wave boundary layer interaction phenomena play a critical role in the design of supersonic and hypersonic vehicles. Consequently, this paper mainly focuses on hypersonic flow over a double wedge

Cited by 3 publications

References 29 publications

Transient Heat Transfer Analysis on Composite Solids for Hypersonic Flow Applications

Transient Heat Transfer Analysis on Composite Solids for Hypersonic Flow Applications

Self-similar analysis of gas dynamics for van der Waals gas in slipping flow after normal shock wave

Investigation of Fully-Coupled Conjugate Heat Transfer and Shock-Wave/Boundary-Layer Interactions using LES

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