Separation induced low-frequency unsteadiness in a supersonic combustor with single-side expansion

C Chen, T Gao, J Liang - Physics of Fluids, 2019 - pubs.aip.org
Systematic studies on separation induced low-frequency unsteadiness in a canonical
supersonic combustor are implemented through wind tunnel experiment and numerical …

Flow dynamics and wall-pressure signatures in a high-Reynolds-number overexpanded nozzle with free shock separation

E Martelli, L Saccoccio, PP Ciottoli… - Journal of Fluid …, 2020 - cambridge.org
A delayed detached eddy simulation of an overexpanded nozzle flow with shock-induced
separation is carried out at a Reynolds number of (non-symmetric) pressure mode and is …

Large-eddy simulation of vortex shedding and pressure oscillations in solid rocket motors

M Bernardini, M Cimini, F Stella, E Cavallini… - AIAA journal, 2020 - arc.aiaa.org
A three-dimensional high-fidelity numerical simulation of a small-scale solid rocket motor is
carried out adopting the implicit large-eddy simulation (ILES) approach to investigate the …

Shock-induced flow separation in an overexpanded supersonic planar nozzle

B Zebiri, A Piquet, A Hadjadj, SB Verma - AIAA Journal, 2020 - arc.aiaa.org
Shock-induced flow separation in an overexpanded supersonic planar nozzle is
investigated numerically by means of three-dimensional wall-modeled large-eddy …

Low-frequency unsteadiness of recompression shock structures in the diffuser of supersonic ejectors

P Gupta, P Kumar, S Rao - Physics of Fluids, 2023 - pubs.aip.org
Supersonic ejectors are passive gasdynamic devices that compress a low-pressure fluid by
utilizing the kinetic energy of a high-pressure fluid in a variable area duct. The ejector …

Computational study on reducing flow asymmetry in over-expanded planar nozzle by incorporating double divergence

PP Nair, A Suryan, HD Kim - Aerospace Science and Technology, 2020 - Elsevier
Rocket nozzles accelerate combustion products or high pressure gases to
supersonic/hypersonic velocities. The planar nozzles have rectangular cross-sections. At …

Jet resonance in truncated ideally contoured nozzles

F Bakulu, G Lehnasch, V Jaunet… - Journal of Fluid …, 2021 - cambridge.org
Unsteady side loads observed in supersonic nozzles operating in over-expanded regimes
are most often associated with intrinsic unsteadiness of the shock system and separation …

Analysis of shock-wave unsteadiness in conical supersonic nozzles

B Zebiri, A Piquet, A Hadjadj - Aerospace Science and Technology, 2020 - Elsevier
Abstract Large Eddy Simulations (LES) of an over-expanded conical nozzle are performed
to study the complex interaction between the turbulent boundary layer, the internal shock …

A synthetic particle group method for the unsteady interaction between shock wave and boundary layer past a compression ramp

X Guo, Y Yang, Z **ao - Physics of Fluids, 2024 - pubs.aip.org
To overcome the lack of resolved turbulent flow structures generated by the improved
delayed detached eddy simulation (IDDES) model when simulating the shock wave and …

Design of thrust-optimized scramjet nozzle and its concise estimation method

K Chen, J Xu, Q Qin, W **ong - AIAA Journal, 2021 - arc.aiaa.org
This Paper is a computational investigation of a scramjet nozzle design based on maximum
thrust theory and its feasibility analysis. A new design method for a two-dimensional …