Analog studies of upstream-inclined waves in magneto-gasdynamic flow

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Cornell University, Feb., 1964 - Science - 70 pages
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An analog was devised to study two dimensional magneto-gasdynamic flow for the case of aligned magnetic and velocity fields and a perfectly-conducting compressible fluid. The analog consists of stretched elastic sheets in an incompressible fluid. The elastic sheets are analogous to a magnetic field and produce a body force on the fluid when displaced from their equilibrium positions. The differential equations describing the system are the same as the magneto-gasdynamic equations for the case cited, except for the expression for the body force in the momentum equations. Analysis of the analog system reveals striking similarties between the small disturbance propagation characteristics of that system and magneto-gasdynamics. In particular, it is shown that it is possible to simulate the conditions under which forward-inclined disturbance waves are predicted in magneto-gasdynamics flows about bodies. (Author).

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