Convective heating in dust-laden hypersonic flows

Fleener, W.; Watson, R. D.

doi:10.2514/6.1973-761

Cited by 28 publications

(10 citation statements)

References 3 publications

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“…Unsteady shock distortion induced by the particles reflected from the body surface is investigated. By comparing the results so obtained with the previous experiments, it will be shown that the numerical results strongly support a flow model for the particle-induced flow field postulated in connection with 'heating augmentation ' observed in the heat transfer measurements in hypersonic particle erosion environments (Dunber, Courtney & McMillen 1975;Fleener & Watson 1973).…”

Section: Introductionsupporting

confidence: 66%

Supersonic gas-particle two-phase flow around a sphere

et al. 1990

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This paper describes supersonic flows of a gas-particle mixture around a sphere. The Euler equations for a gas-phase interacting with a particle one are solved by using a TVD (Total Variation Diminishing) scheme developed by Chakravarthy & Osher, and the particle phase is solved by applying a discrete particle-cloud model. First, steady two-phase flows with a finite loading ratio are simulated. By comparing in detail the dusty results with the dust-free ones, the effects of the presence of particles on the flow field in the shock layer are clarified. Also an attempt to correlate the particle behaviours is made with universal parameters such as the Stokes number and the particle loading ratio. Next, non-steady two-phase flows are treated. Impingement of a large particle-cloud on a shock layer of a dust-free gas in front of a sphere is numerically simulated. The effect of particles rebounded from the sphere is taken into account. It is shown that a temporal reverse flow region of the gas is induced near the body axis in the shock layer, which is responsible for the appearance of the gas flow region where the pressure gradient becomes negative along the body surface. These phenomena are consistent with the previous experimental observations. It will be shown that the present results support a flow model for the particle-induced flow field postulated in connection with ‘heating augmentation’ found in the heat transfer measurement in hypersonic particle erosion environments. The particle behaviour in such flows is so complicated that it is almost impossible to treat the particle phase as an ordinary continuum medium.

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Section: Introductionsupporting

confidence: 66%

Supersonic gas-particle two-phase flow around a sphere

et al. 1990

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“…The theoretical estimates of q 2 provide only tentative values of this function [1]. Therefore, its value is usually estimated experimentally.…”

Section: Introductionmentioning

confidence: 99%

“…Presently, heat and mass transfer in heterogeneous media are being studied intensively [1,2]. This interest is associated with the important practical applications of the results of such investigations in aerospace technology, nuclear power engineering, turbine manufacture, chemical technology, and other fields.…”

Section: Introductionmentioning

confidence: 99%

A study of convective heat fluxes for materials interacting with dust-loaded flows by inverse problems method

Ненарокомов

Alifanov

Artioukhine

et al. 2004

International Journal of Thermal Sciences

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“…An environment in which solid or liquid particles impact a flying object is known as an erosive environment. A considerable amount of research has been carried out on this subject [4,5]. However, the results of such studies have not yet been reported in whole, at least in open literature.…”

Section: Introduction Wmentioning

confidence: 99%

High-Velocity Impact of Ice Particles on a Composite Material

Hong

Park

Baek

2009

Journal of Composite Materials

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ABSTRACT:The effect of an ice particle impact on composite materials was studied. An ice projectile was launched by a two-stage light gas gun to a Mach number of 23. A carbon/epoxy composite material was made from WSN3k preimpregnated carbon fiber fabric. First, the total mass removed from target specimen was measured. Threshold energy for material removal was found to be 5.15 J for the specimens tested. Second, momentum transferred to the target specimen was measured. The target was found to receive 1.18 times the momentum of the impacting projectile, implying that impact debris reflect 18% of the projectile's momentum. Finally, ejecta behavior was studied using witness film and a high-speed camera. From these experimental data, an empirical model describing the impacting process was developed. Among others, the kinetic energy of the ejecta particle was found to be 26.4% of the original impact energy.KEY WORDS: ice impact, composite material, high-velocity impact.

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Convective heating in dust-laden hypersonic flows

Cited by 28 publications

References 3 publications

Supersonic gas-particle two-phase flow around a sphere

Supersonic gas-particle two-phase flow around a sphere

A study of convective heat fluxes for materials interacting with dust-loaded flows by inverse problems method

High-Velocity Impact of Ice Particles on a Composite Material

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