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Article
Nonlocal turbulent transport in a buoyant vortex ring during the ascent of a thermal in a stratified atmosphere
The flow initiated by a hot gas cloud (thermal) in a stratified atmosphere is calculated on the basis of theκ-ε turbulence model and the transport model for the Reynolds stresses and turbulent fluxes and the resu...
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Article
Head-on collision of two spherical shock waves. Interaction of laser sparks in a gas
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Article
Numerical investigation of the spatial interaction of two large-scale thermals
The numerical modeling of three-dimensional phenomena has become possible with the appearance of a new generation of computers with conveyor processing of large numerical files. The authors have developed a di...
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Article
Spherical shock wave reflection from a surface with a heated gas layer
The two-dimensional axisymmetric problem of the interaction between smallscale spherical shock waves initiated by a laser explosion and an absolutely rigid surface in the presence of a layer of hot gas is nume...
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Article
Interaction between a plane shock wave and a spherical volume of hot gas
The two-dimensional axisymmetric problem of the passage of a plane shock wave through a thermal is investigated. Two known effects are confirmed, namely, the intense distortion of the shock front on passage th...
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Article
Drift of large-scale hot thermals in stratified air flows
A difference method developed for the calculation of the three-dimensional unsteady flows of a viscous heat-conducting gas is used to investigate the influence of a horizontal wind, stratified with respect to ...
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Article
Motion of gas due to a point explosion in an inhomogeneous atmosphere
The problem of a strong point explosion in an atmosphere with exponential dependence of the density on the altitude was considered in detail in the monograph [1]. As the blast wave becomes weaker, it is necess...
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Article
Numerical verification of landau's asymptotic formulas for boundary layer separation
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Article
Asymptotic study of viscous compressible gas flow past a blunt body
Supersonic viscous gas flow past a blunt body is examined. A method is proposed which permits constructing the asymptotic expansion of any order in the small parameter ε, which characterizes the viscosity and ...