Results 31 to 40 of about 6,875 (317)
A Unified Asymptotic Theory of Supersonic, Transonic, and Hypersonic Far Fields
Axioms, 2022 The problems of steady, inviscid, isentropic, irrotational supersonic plane flow passing a body with a small thickness ratio was solved by the linearized theory, which is a first approximation at and near the surface but fails at far fields from the body.
Lung-Jieh Yang, Chao-Kang Feng
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An experimental study of the influence of spike in supersonic and transonic flows past a hemispheric body [PDF]
FME Transactions, 2022 A strong shock wave during a supersonic flight of a blunt-nosed projectile increases the drag and aerodynamic heating considerably. A spike can be mounted on the nose of the projectile to reduce these effects. Apart from its very existence and its length,
Milićev Snežana S.
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Computational and experimental investigation into aerodynamic interference between slender bodies in supersonic flow [PDF]
, 2011 Aerodynamic interference can occur between high-speed bodies when in close proximity. A complex flowfield develops where shock and expansion waves from a generator body impinge upon the adjacent receiver body and modify its aerodynamic characteristics.
Birch, Trevor J. +11 more
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A face-based immersed boundary method for compressible flows using a uniform interpolation stencil
Frontiers in Mechanical Engineering, 2022 In this study, an immersed boundary method developed for compressible viscous flows (Ramakrishnan, R., Girdhar, A., & Ghosh, S. (2016). Immersed Boundary Methods for Compressible Laminar Flows) is modified to improve their stability and robustness ...
M. L. N. V. Kasturi Rangan +1 more
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Simulation of a supersonic nozzle of a massive helium jet injector
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023 The paper describes the design and operating principle of a valve designed for testing the prototypes of key elements of a massive gas injection system: a seat and a supersonic nozzle.
Timokhin Vladimir +4 more
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Diffusion in supersonic turbulent compressible flows
Physical Review E, 2003 We investigate diffusion in supersonic, turbulent, compressible flows. Supersonic turbulence can be characterized as network of interacting shocks. We consider flows with different rms Mach numbers and where energy necessary to maintain dynamical equilibrium is inserted at different spatial scales.
Klessen, Ralf S., Lin, Doug N. C.
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Engineering Applications of Computational Fluid Mechanics, 2018 The widely used improved delayed detached eddy simulation (IDDES) method is supposed to accurately predict the mean skin friction when it acts as wall-modeled large eddy simulation (WMLES), as claimed by the original authors.
Yiyu Han +4 more
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Effects of Inflow Mach Number and Step Height on Supersonic Flows over a Backward-Facing Step
Advances in Mechanical Engineering, 2013 The backward-facing step is practically implicated in many devices, encountering the massive separation flows. In the present study, simulations of supersonic flow over a backward-facing step have been carried out employing both RANS and LES.
Haixu Liu +4 more
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Entropy Minimization Design Approach of Supersonic Internal Passages
Entropy, 2015 Fluid machinery operating in the supersonic regime unveil avenues towards more compact technology. However, internal supersonic flows are associated with high aerodynamic and thermal penalties, which usually prevent their practical implementation. Indeed,
Jorge Sousa, Guillermo Paniagua
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Improvement of Baldwin-Lomax turbulence model for supersonic complex flows
, 2013 Entropy represents the dissipation rate of energy. Through direct numerical simulation (DNS) of supersonic compression ramp flow, we find the value of entropy is monotonously decreasing along the wall-normal direction no matter in the attached or the ...
Zhao R(赵瑞) +4 more
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