Analytical prediction of the reflected-diffracted shock wave shape in the interaction of a regular reflection with an expansive corner

Li, H.; Ben‐Dor, G.; Han, Zhi‐Yong

doi:10.1016/0169-5983(94)90033-7

Cited by 10 publications

(2 citation statements)

References 5 publications

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“…Using the continuum hypothesis, authors of the study [9] analyzed effects of the distributions of the flow temperature and velocity, as well as the size of the transition region, on the transformation of compression waves into shock waves. It was shown that a compression wave can turn into a shock wave when the perturbation velocities are sufficiently high.…”

Section: Introductionmentioning

confidence: 99%

Shock waves in gas flows with nanoparticles

Авраменко

Shevchuk

Dmitrenko

et al. 2022

J Therm Anal Calorim

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The paper focuses on the analytical analysis of the propagation of a normal shock wave in an adiabatic gas flow with nanoparticles. A modified Rankine–Hugoniot model was used for this purpose. A solution is obtained for the Rankine–Hugoniot conditions in a gas flow with different nanoparticle concentrations, which makes it possible to analyze the dynamics of variation of the parameters of this type of flow under a shock wave. The variation of velocity, pressure and entropy production of the adiabatic gas flow during a direct shock wave depending on the concentration of nanoparticles in the gas was depicted graphically. It was revealed that increasing the nanoparticle concentration to φ ~ 0.1 weakens the effect of the shock wave, and then, after passing the zone of minimum parameters, the intensity of the shock wave increases.

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Section: Introductionmentioning

confidence: 99%

Shock waves in gas flows with nanoparticles

Авраменко

Shevchuk

Dmitrenko

et al. 2022

J Therm Anal Calorim

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“…An incident shock Mach number of 1.45 is the boundary of the formation of the typical lambda shock structure on the shear layer since for this speed the flow becomes locally supersonic in the vicinity of the corner [1]. Analytical investigations have developed mathematical models to describe the shape of the various shock waves and the point of intersection between the incident wave and the reflected wave [5][6][7][8][9][10][11][12]. An interesting experiment was performed by Skews [13] in order to determine the reflected expansion shock profile and the angle it forms with the surface in a multi-facetted wall, made of a series of straight segments and schematically shown in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

Shock Wave Diffraction Phenomena around Slotted Splitters

Gnani

Zare‐Behtash

et al. 2015

Aerospace

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In the field of aerospace engineering, the study of the characteristics of vortical flows and their unsteady phenomena finds numerous engineering applications related to improvements in the design of tip devices, enhancement of combustor performance, and control of noise generation. A large amount of work has been carried out in the analysis of the shock wave diffraction around conventional geometries such as sharp and rounded corners, but the employment of splitters with lateral variation has hardly attracted the attention of researchers. The investigation of this phenomenon around two-dimensional wedges has allowed the understanding of the basic physical principles of the flow features. On the other hand, important aspects that appear in the third dimension due to the turbulent nature of the vortices are omitted. The lack of studies that use three-dimensional geometries has motivated the current work to experimentally investigate the evolution of the shock wave diffraction around two splitters with spike-shaped structures for Mach numbers of 1.31 and 1.59. Schlieren photography was used to obtain an insight into the sequential diffraction processes that take place in different planes. Interacting among them, these phenomena generate a complicated turbulent cloud with a vortical arrangement.

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A shock dynamics theory based analytical solution of double Mach reflections

Ben‐Dor

1995

Shock Waves

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Analytical prediction of the reflected-diffracted shock wave shape in the interaction of a regular reflection with an expansive corner

Cited by 10 publications

References 5 publications

Shock waves in gas flows with nanoparticles

Shock waves in gas flows with nanoparticles

Shock Wave Diffraction Phenomena around Slotted Splitters

A shock dynamics theory based analytical solution of double Mach reflections

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