The results of an experimental study of the plasma flow in a disk channel under conditions of strong hydromagnetic interaction are presented. It is shown that if the condition RemH 0 2 /8π≥0.2 is satisfied for the magnetic Reynolds number at some point of the stream, then a current layer develops at that point characterized by a high electric-current density and high conductivity and temperature. The formation of the current layer leads to strong local retardation of the stream, the appearance of a shock wave, and a number of other nonlinear hydromagnetic phenomena. The experimental results are in agreement with theoretical studies conducted earlier.
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A. N. Tikhonov, A. A. Samarskii, L. A. Zaklyaz'minskii, P. P. Volosevich, L. M. Degtyarev, S. P. Kurdyumov, Yu. P. Popov, V. S. Sokolov, and A. P. Favorskii, “Nonlinear effect of formation of a self-sustaining, high-temperature, electrically conducting gas layer in nonstationary processes of magnetohydrodynamics,” Dokl. Akad. Nauk SSSR,173, No. 4 (1967).
L. M. Degtyarev, L. A. Zaklyaz'minskii, S. P. Kurdyumov, A. A. Samarskii, V. S. Sokolov, and A. P. Favorskii, “Development of finite local disturbances in electrical conductivity in a stream of weakly conducting gas in the presence of a magnetic field,” Teplofiz. Vys. Temp.,7, No. 3, (1969).
B. B. Kadomtsev, “Hydromagnetic stability of a plasma,” in: Problems of Plasma Theory [in Russian], No. 2, Atomizdat, Moscow (1963).
V. A. Derevyanko, L. A. Zaklyaz'minskii, S. S. Katsnel'son, A. Yu. Kerkis, E. F. Lebedev, N. A. Trynkina, and V. P. Fomichev, “Study of nonstationary interaction of a cluster of conducting gas with a given electrical contour,” Zh. Prikl. Mekhan. Tekh. Fiz., No. 2, (1968).
Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 3, pp. 31–37, May–June, 1974.
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Kerkis, A.Y., Sokolov, V.S., Trynkina, N.A. et al. Experimental study of plasma flow in a disk MHD channel under conditions of spontaneous formation of a current layer. J Appl Mech Tech Phys 15, 312–316 (1974). https://doi.org/10.1007/BF00852218
- Mathematical Modeling
- Experimental Study
- Shock Wave
- Reynolds Number
- Mechanical Engineer