Supersonic piston synthetic jets with single/multiple orifice
Sign Up to like & getrecommendations! Published in 2018 at "Experiments in Fluids"
DOI: 10.1007/s00348-018-2529-9
Abstract: We experimentally study a high-speed synthetic jet actuator consisting of a cylinder with an orifice plate at the top and a piston driven by a motor. The experiments are performed for four orifice plates with… read more here.
Keywords: synthetic jets; mach; cylinder pressure; number ... See more keywords
Low Mach preconditioned density-based methods with implicit Runge–Kutta schemes in physical-time
Sign Up to like & getrecommendations! Published in 2021 at "Journal of The Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-021-03055-9
Abstract: As far as the authors are aware, low Mach preconditioned density-based methods found in the peer-reviewed literature only employ multi-step schemes for physical-time integration. This essentially limits the maximum achievable temporal accuracy-order of these methods… read more here.
Keywords: mach; time; mach preconditioned; density based ... See more keywords
Experimental and numerical investigations of trailing edge injection in a transonic turbine cascade
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2019.05.069
Abstract: Abstract Trailing edge mixing flows associated with coolant injection are complex, in particular at transonic flows, and result in significant aerodynamics losses. A series of tests and calculations on a high-pressure turbine vane cascade with… read more here.
Keywords: trailing edge; mach; edge injection; injection ... See more keywords
Robust optimization for a wing at drag divergence Mach number based on an improved PSO algorithm
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2019.06.041
Abstract: Abstract In this study, an improved PSO (particle swarm optimization) algorithm is proposed and applied to the robust optimization of a wing at drag divergence Mach number. In order to reduce the number of design… read more here.
Keywords: mach; optimization; number; improved pso ... See more keywords
Effect of the wall temperature on Mach stem transformation in pseudo-steady shock wave reflections
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2019.118927
Abstract: Abstract Pseudo-steady shock wave reflections on a compression ramp are recognized as a significant phenomenon in the shock dynamics field. Several investigations have been performed on this phenomenon by shock tube experiments, combined with numerical… read more here.
Keywords: mach; wall temperature; shock; mach stem ... See more keywords
Numerical investigation on mixing behavior of fuels inreacting and non-reacting flow condition of a cavity-strut based scramjet combustor
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2019.04.262
Abstract: Abstract The present study discusses the effects of reacting and non-reacting flow conditions on the flow physics of a scramjet combustor. A cavity based supersonic combustor with a triangular strut is used to analyze the… read more here.
Keywords: mach; ethylene; hydrogen; combustor ... See more keywords
Numerical characterization of 3D nonreacting supersonic cavity combustor with inlet Mach number variation
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2020.01.187
Abstract: Abstract A numerical investigation of a cavity-based supersonic combustor with non-reacting upstream hydrogen fuel injection is conducted to study the effects of inlet Mach number (Ma) on flow structure and fuel-air mixing. Three different freestream… read more here.
Keywords: mach; cavity; combustor; mach number ... See more keywords
The regular reflection→Mach reflection transition in unsteady flow over convex surfaces
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.835
Abstract: The non-stationary transition from regular reflection (RR) to Mach reflection (MR) over convex segments has been the focus of many recent studies. Until recently, the problem was thought to be very complicated because it was… read more here.
Keywords: transition; mach; reflection; convex surfaces ... See more keywords
Interaction and propagation characteristics of two counter and co-propagating Mach cones in a dusty plasma
Sign Up to like & getrecommendations! Published in 2017 at "Physics of Plasmas"
DOI: 10.1063/1.4977903
Abstract: We theoretically investigate the interaction and propagation characteristics of two co/counter propagating Mach cones triggered by two projectile particles moving with supersonic velocities in the same/opposite directions through a dusty plasma medium. The Mach cone… read more here.
Keywords: mach; counter propagating; propagating mach; interaction propagation ... See more keywords
Streamwise vortex breakdown in supersonic flows
Sign Up to like & getrecommendations! Published in 2017 at "Physics of Fluids"
DOI: 10.1063/1.4982901
Abstract: Transition processes in supersonic streamwise vortices with wake flows are numerically simulated for Mach numbers from 1.5 to 5.0. This paper discusses the effect of an axial velocity deficit on the breakdown for a fixed… read more here.
Keywords: breakdown supersonic; supersonic flows; mach; breakdown ... See more keywords
Aeroacoustic characteristics of subsonic flow from axisymmetric pipe-cavities
Sign Up to like & getrecommendations! Published in 2019 at "Physics of Fluids"
DOI: 10.1063/1.5123661
Abstract: A detailed experimental study on the acoustic characteristics of an axisymmetric pipe-cavity jet is conducted for different ratios of cavity depth to length, over a range of subsonic Mach numbers. Power spectral analysis and Scalogram… read more here.
Keywords: range; mach; resonance; physics ... See more keywords