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  1. Diffusion effect in MHD turbulence

  2. Gas core nuclear thermal rocket engine research and development in the former USSR

    Beginning in 1957 and continuing into the mid 1970s, the USSR conducted an extensive investigation into the use of both solid and gas core nuclear thermal rocket engines for space missions. During this time the scientific and engineering. problems associated with the development of a solid core engine were resolved. At the same time research was undertaken on a gas core engine, and some of the basic engineering problems associated with the concept were investigated. At the conclusion of the program, the basic principles of the solid core concept were established. However, a prototype solid core engine was not builtmore » because no established mission required such an engine. For the gas core concept, some of the basic physical processes involved were studied both theoretically and experimentally. However, no simple method of conducting proof-of-principle tests in a neutron flux was devised. This report focuses primarily on the development of the. gas core concept in the former USSR. A variety of gas core engine system parameters and designs are presented, along with a summary discussion of the basic physical principles and limitations involved in their design. The parallel development of the solid core concept is briefly described to provide an overall perspective of the magnitude of the nuclear thermal propulsion program and a technical comparison with the gas core concept.« less
  3. Gas core nuclear thermal rocket engine research and development in the former USSR

    Beginning in 1957 and continuing into the mid 1970s, the USSR conducted an extensive investigation into the use of both solid and gas core nuclear thermal rocket engines for space missions. During this time the scientific and engineering. problems associated with the development of a solid core engine were resolved. At the same time research was undertaken on a gas core engine, and some of the basic engineering problems associated with the concept were investigated. At the conclusion of the program, the basic principles of the solid core concept were established. However, a prototype solid core engine was not builtmore » because no established mission required such an engine. For the gas core concept, some of the basic physical processes involved were studied both theoretically and experimentally. However, no simple method of conducting proof-of-principle tests in a neutron flux was devised. This report focuses primarily on the development of the. gas core concept in the former USSR. A variety of gas core engine system parameters and designs are presented, along with a summary discussion of the basic physical principles and limitations involved in their design. The parallel development of the solid core concept is briefly described to provide an overall perspective of the magnitude of the nuclear thermal propulsion program and a technical comparison with the gas core concept.« less
  4. Supercritical ring MHD couette flow in an axial magnetic field (in Russian)

  5. EFFECTS OF LONGITUDINAL MAGNETIC FIELD ON THE FLOW IN A TUBE. (in Russian)

  6. Circular MHD flow in crossed electrical and magnetic fields (in Russian)

    In order to explain the nonmonotonic dependence of the energy of turbulent pulsations of the longitudinal component of the velocity as a function of the magnetic field in circular flow, measured earlier with a thermoanemometer of a narrow type, analogous measurements were carried out with a wide-type meter which did not perturb the flow. In this case with increasing magnetic field the pulsations fell monotonically to background level. Thus ihe anomalous character of the dependence obtained earlier is actually associated with the breakup of Karman eddies from the jaws of the measuring instrument, and laminar flow with increasing magnetic fieldmore » was attained under conditions of strong flow perturbation. (tr-auth)« less

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"Gurfink, M.M."

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