Topic
Oblique shock
About: Oblique shock is a research topic. Over the lifetime, 6551 publications have been published within this topic receiving 119823 citations.
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TL;DR: In this article, self-similar flows of a non-ideal gas driven by an expanding piston are studied and the equation of state for such gases is taken in the best suitable form that is found to be fairly accurate at low density region.
68 citations
01 Jul 1951
TL;DR: In this article, the boundary-layer equations of a weak shock wave of strength ∈ have been investigated, and it is shown that if R is the Reynolds number of the boundary layer, separation occurs when ∈ = o(R−i).
Abstract: The effect on the boundary-layer equations of a weak shock wave of strength ∈ has been investigated, and it is shown that if R is the Reynolds number of the boundary layer, separation occurs when ∈ = o(R−i). The boundary-layer assumptions are then investigated and shown to be consistent. It is inferred that separation will occur if a shock wave meets a boundary and the above condition is satisfied.
67 citations
TL;DR: In this paper, the global existence of a shock wave for the stationary supersonic gas flow past an infinite curved and symmetric cone was proved, based on a global uniform weighted energy estimate for the linearized problem.
Abstract: We prove the global existence of a shock wave for the stationary supersonic gas flow past an infinite curved and symmetric cone. The flow is governed by the potential equation, as well as the boundary conditions on the shock and the surface of the body. It is shown that the solution to this problem exists globally in the whole space with a pointed shock attached at the tip of the cone and tends to a self-similar solution under some suitable conditions. Our analysis is based on a global uniform weighted energy estimate for the linearized problem. Combining this with the local existence result of Chen–Li [1] we establish the global existence and decay rate of the solution to the nonlinear problem.
67 citations
TL;DR: In this article, the authors describe new experimental results regarding the pressure fields in front of and inside granular layers of different materials during their collision with weak shock waves, showing that a variety of waves result from the shock wave-granular layer interaction.
Abstract: The paper describes new experimental results regarding the pressure fields in front of and inside granular layers of different materials during their collision with weak shock waves. A variety of waves result from the shock wave-granular layer interaction. The pressure behind the reflected wave from the material interface approaches the equilibrium value, P5, which would have been reached had the shock wave reflected from a solid end-wall.
67 citations
TL;DR: In this paper, the axial positions of the vortex ring and shock front are plotted as a function of time for the first millisecond, in which time the vortex forms and is accelerated to about three-quarters of the theoretical particle velocity of the mass flow following the initial plane shock.
Abstract: Schilieren spark snapshots spaced at electronically controlled intervals of several hundredths of a millisecond show the emergence of the shock wave and the formation of the vortex ring at the end of a cylindrical shock tube, open to the atmosphere. The axial positions of the vortex ring and shock front are plotted as a function of time for the first millisecond, in which time the vortex forms and is accelerated to about three‐quarters of the theoretical particle velocity of the mass flow following the initial plane shock. The diameter of the vortex ring increases nonlinearly with time and distance.
67 citations