Results 261 to 270 of about 1,481,988 (297)
Some of the next articles are maybe not open access.
Self-Similar Solutions for Weak Shock Reflection
SIAM Journal on Applied Mathematics, 2002We present numerical solutions of a two-dimensional Riemann problem for the unsteady transonic small disturbance equations that provides an asymptotic description of the Mach reflection of weak shock waves. We develop a new numerical scheme to solve the equations in self-similar coordinates and use local grid refinement to resolve the solution in the ...
Allen M. Tesdall, John K. Hunter
openaire +2 more sources
1994
The study of reflection of shock waves from rigid boundaries has been a subject of considerable interest. Reflection phenomenon can be divided into three sub-heads.
openaire +1 more source
The study of reflection of shock waves from rigid boundaries has been a subject of considerable interest. Reflection phenomenon can be divided into three sub-heads.
openaire +1 more source
Reignition of detonations by reflected shocks
Shock Waves, 1995Numerical simulations are used to study the diffraction, decay, and reignition that occurs when a detonation propagates past an increase in cross-sectional area in a rectangular tube. The computations solve the time-dependent two-dimensional equations describing a reactive flow in an argon-diluted stoichiometric hydrogen-oxygen mixture at atmospheric ...
D. A. Jones, M. Sichel, E. S. Oran
openaire +1 more source
Reflectivity of a shocked solid surface
Optics Communications, 1986Abstract Using a one-dimensional hydrodynamic code and a post-processor which treats the propagation of an electromagnetic wave in an inhomogeneous plasma, we have studied the reflectivity of a shocked solid surface. The simulations were used to assess the diagnostic value of such measurements in determining the electrical conductivity of a dense ...
D. Parfeniuk +3 more
openaire +1 more source
Shock dynamic description of reflected shock waves
1992An application of the shock dynamic equations for a moving gas to regular reflection over a wedge is made. First of all, a description of the formation of reflected shock in RR and the corresponding relations are presented. Secondly, a comparison is made between sound theory and shock dynamics for moving gas, the behaviour of the first disturbance ...
openaire +1 more source
AIAA Journal, 2004
The study of the transition from regular to Mach reflection of shock waves has received considerable attention over the past decade, particularly because of the differences found between numerical and experimental data sets. Whereas this has now been satisfactorily shown to be due to wind-tunnel noise, it raises the issue of the effects of unsteady, or
Luke T. Felthun, Beric W. Skews
openaire +1 more source
The study of the transition from regular to Mach reflection of shock waves has received considerable attention over the past decade, particularly because of the differences found between numerical and experimental data sets. Whereas this has now been satisfactorily shown to be due to wind-tunnel noise, it raises the issue of the effects of unsteady, or
Luke T. Felthun, Beric W. Skews
openaire +1 more source
Formation of the shock reflection on a wedge
1992The formation of shock reflection close to the leading edge of a wedge is investigated. Varying the wedge angle, a regular reflection or a Mach reflection can be obtained. To get a good resolution of the reflection process, measurements are performed under rarefied gas conditons. The observed flow field is definitely unsteady.
J. Fuchs, B. Schmidt
openaire +1 more source
Shock and Reflection in a Nonlinear Medium
Journal of the Engineering Mechanics Division, 1965One-dimensional shock wave propagation and reflection phenomena in a nonlinear medium are investigated. The medium is of decreasing compressibility, its stress-strain curve has a general nonlinear character which on its loading branch is approximately an nth order parabola. Unloading occurs on a vertical branch, parallel with the stress axis.
Paul Weidlinger, Alva T. Matthews
openaire +1 more source
Shock Wave Reflections in Unsteady Flows
1992The analytical investigation of the reflection phenomenon of shock waves in steady flows is much simpler than that in pseudo-steady flows for the following reasons: 1) Unlike the reflection process in pseudo-steady flows, where it is coupled with an additional process, namely, the flow deflection process (see section 2.6.1), in steady flows the ...
openaire +1 more source
Reflection of curved shock waves
Shock Waves, 2017Shock curvatures are related to pressure gradients, streamline curvatures and vorticity in flows with planar and axial symmetry. Explicit expressions, in an influence coefficient format, are used to relate post-shock pressure gradient, streamline curvature and vorticity to pre-shock gradients and shock curvature in steady flow.
openaire +1 more source