MAGNETOHYDRODYNAMICS AND MAGNETOGASDYNAMICS
The fundamental equations of magnetofluiddynamics are derived. For incompressible fluid magnetohydrodynamics, the important parameters are the Reynolds number R/sub e/, the magnetic pressure number R/sub H/, which is the ratio of magnetic pressure to dynamic pressure, and the velocity number R/sub v/, which is the ratio of the fluid velocity to the characteristic velocity of which the magnetic field is moving through a conductor. Some exact solutions and properties of the equations of magnetohydrodynamics are given. Stability of laminar flow and turbulence in magnetohydrodynamics are briefly reviewed. Some magnetohydrodynamic experiments are described. For compressible fluid, magnetogasdynamics, the important parameters are still R/sub e/, R/sub H/, and R/ sub v/ plus other well known important parameters of ordinary gas dynamics such as Mach number, Prandtl number, and ratio of specific heats. Both the waves of small amplitude, Alfven's waves in compressible fluid, and shock waves in magnetogasdynamics are discussed. (auth)
- Research Organization:
- Maryland. Univ., College Park. Inst. for Fluid Dynamics and Applied Mathematics
- NSA Number:
- NSA-14-010578
- OSTI ID:
- 4205290
- Report Number(s):
- OSR-TN-55-347; BN-59: AD-74432
- Country of Publication:
- United States
- Language:
- English
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