Affiliation:
1. Department of Mechanical Engineering, B. V. Raju Institute of Technology, Narsapur, Telangana 502313, India
2. Department of Mechanical Engineering, National Institute of Technology Silchar, Silchar, Assam 788010, India
Abstract
Abstract
The shear mixing and streamline vortices are the notable parameters to influence the air–fuel mixing in hypersonic flows. The shock wave development and Mach number significantly influence the shear mixing phenomenon. Hence, this research introduced an unconventional strut and tested its performance for the generation of shock waves at different flow conditions (M = 2,4,6). The Reynolds-averaged Navier–Stokes equations are solved to evaluate the performance of the new strut. Both the DLR scramjet strut injector and wavy wall strut injector are assessed for the shear mixing development. Turbulence for the association of shock waves, mixing layer, and the boundary layer has been modeled with the SST k-ω model. The variation in shock development and its interactions are investigated further with an increase in Mach number. The scramjet flow structure differentiation found the increased number of oblique shock waves with the wavy wall strut fuel injector. It increases the turbulence level with increased streamline vortices, turbulent intensity, and turbulent kinetic energy. The shock wave generation analysis at different Mach numbers (M = 2,4,6) found fewer interactions between the shock wave and shear layer with increased Mach number. From the examination of shock wave generation and its interaction with the shear layer and analysis of turbulent parameters, it is found that the wavy wall strut has an appreciable effect on shock-induced blend augmentation of fuel and air.
Publisher
Oxford University Press (OUP)
Subject
Computational Mathematics,Computer Graphics and Computer-Aided Design,Human-Computer Interaction,Engineering (miscellaneous),Modeling and Simulation,Computational Mechanics
Reference42 articles.
1. Shock wave–turbulence interactions;Andreopoulos;Annual Review of Fluid Mechanics,2000
2. Supersonic combustion of hydrogen using an improved strut injection scheme;Aravind;International Journal of Hydrogen Energy,2019
3. Interaction of a compressible shear layer with shock waves: An experimental study;Brummund;American Institute of Aeronautics and Astronautics,1997
4. Rayleigh scattering measurements of shock enhanced mixing;Budzinski;American Institute of Aeronautics and Astronautics,1992
5. Interaction of oblique shock waves and planar mixing regions;Buttswortht;Journal of Fluid Mechanics,1996
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