Studies of shock wave interactions with homogeneous and isotropic turbulence
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Studies of shock wave interactions with homogeneous and isotropic turbulence

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Published by National Aeronautics and Space Administration, Langley Research Center, National Technical Information Service, distributor in Hampton, Va, Springfield, VA .
Written in English

Subjects:

  • Shock wave interaction.,
  • Isotropic turbulence.,
  • Homogeneous turbulence.,
  • Turbulent flow.,
  • Compressible flow.,
  • Mach number.

Book details:

Edition Notes

StatementG. Briassulis ... [et al].
Series[NASA contractor report] -- NASA/CR-1998-206948., NASA contractor report -- NASA CR-206948.
ContributionsBriassulis, G., Langley Research Center., United States. National Aeronautics and Space Administration.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL15547308M

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  The studies involving homogeneous turbulence and shocks have inherently focused on the fundamental aspects of compressible turbulence dynamics, whereas the studies involving inhomogeneous turbulent flows and shocks have additionally focused on flow prediction and subsequent control. In the latter case, the shock is evanescent and other effects.   Interaction of isotropic quasi-incompressible turbulence with a weak shock wave was studied by direct numerical simulations. The effects of the fluctuation Mach number M t of the upstream turbulence and the shock strength M 2 1 — 1 on the turbulence statistics were investigated. The ranges investigated were ≤ M t ≤ and ≤ M 1 ≤ Cited by: The idealized interactions of shock waves with homogeneous and isotropic turbulence, homogeneous sheared turbulence, turbulent jets, shear layers, turbulent wake flows, and two-dimensional boundary layers have been reviewed. The interaction between a shock wave and turbulence is mutual. A shock wave exhibits substantial unsteadiness and deformation as a result of the interaction, whereas the Cited by:   The unsteady interaction of a moving shock wave with nearly homogeneous and isotropic decaying compressible turbulence has been studied experimentally in a large-scale shock tube facility. Rectangular grids of various mesh sizes were used to generate turbulence with Reynolds numbers based on Taylor's microscale ranging from to Cited by:

Homogeneous isotropic turbulence is an idealized version of the realistic turbulence, but amenable to analytical concept of isotropic turbulence was first introduced by G.I. Taylor in The meaning of the turbulence is given below, homogeneous, the statistical properties are invariant under arbitrary translations of the coordinate axes. The idealized interactions of shock waves with homogeneous and isotropic turbulence, homogeneous sheared turbulence, turbulent jets, shear layers, turbulent wake flows, and two-dimensional boundary layers have been reviewed. The interaction between a shock wave and turbulence is mutual. A shock wave exhibits substantial unsteadiness and deformation as a result of the interaction, whereas the. The unsteady interaction of a moving shock wave with nearly homogeneous and isotropic decaying compressible turbulence has been studied experimentally in a large-scale shock tube facility. In this work, we use numerical simulation and linear inviscid theory to study the thermodynamic field generated by the interaction of a shock wave with homogeneous isotropic turbulence.

Shock wave interactions with grid-generated homogeneous and isotropic turbulence are observed numerically by solving the time-dependent three-dimensional Navier-Stokes equations with k−ε turbulence model for a compressible fluid. The amplification of longitudinal turbulence intensity and turbulent kinetic energy level are measured numerically for different turbulence regimes located along Author: Mohammad Ali Jinnah, Kazuyoshi Takayama. shock waves with turbulent boundary layers than for interactions with isotropic turbulence. While studies of shock/turbulent-boundary-layer interactions are of great importance from the standpoints of both physics and engineering, concurrent studies of shock/isotropic-turbulence interactions (SITI) can help to elucidate which physical processes.   Shock Wave&-Turbulence Interactions Shock Wave&-Turbulence Interactions Andreopoulos, Yiannis; Agui, Juan H.; Briassulis, George Abstract The idealized interactions of shock waves with homogeneous and isotropic turbulence, homogeneous sheared turbulence, turbulent jets, shear layers, turbulent wake flows, and two-dimensional boundary layers . The canonical problem of a shock wave interacting with homogeneous, isotropic turbulence (STI) has been well studied for over 40 years [1] and remains a topic of interest [2, 3]. One of the motivations for studying this canonical STI problem is that it captures key physics of the complex viscous-inviscid interaction that occur in other more Cited by: 1.