Effect of buoyancy on fuel containment in an open-cycle gas-core nuclear rocket engine.Analysis aimed at determining the scaling laws for the buoyancy effect on fuel containment in an open-cycle gas-core nuclear rocket engine, so conducted that experimental conditions can be related to engine conditions. The fuel volume fraction in a short coaxial flow cavity is calculated with a programmed numerical solution of the steady Navier-Stokes equations for isothermal, variable density fluid mixing. A dimensionless parameter B, called the Buoyancy number, was found to correlate the fuel volume fraction for large accelerations and various density ratios. This parameter has the value B = 0 for zero acceleration, and B = 350 for typical engine conditions.
Putre, H. A. (NASA Lewis Research Center Cleveland, Ohio, United States)
August 6, 2013
January 1, 1971
Meeting: Symposium on Uranium Plasmas: Research and Applications