Accession Number : AD0682832

Title :   UTILIZATION OF THE THEORY OF SIMILITUDE IN THE ANALYSIS OF OIL FLOW IN THE PASSAGES OF GAS TURBINE ENGINE BEARINGS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Demidovich,V. M.

Report Date : 18 JUN 1968

Pagination or Media Count : 21

Abstract : The need for a theoretical study based upon the theory of similitude arose in connection with the requirement for a generalization of experimental research data accumulated on gas turbine engine ('GTD') bearings. These are lubricated and cooled by a forced-through flow of oil. The conditions of hydrodynamic similitude of the oil flow in the passages of geometrically similar bearings are studied. Because of the non-isothermic nature of the oil flow, its hydrodynamics are governed by all four equations defining, in a general case, the forced stationary flow of the viscous, imcompressible fluid. These are the equations of continuity, conservation of momentum, conservation of energy, and of state. (Author)

Descriptors :   (*GAS TURBINES, ROLLER BEARINGS), (*ROLLER BEARINGS, OILS), (*OILS, *HYDRODYNAMICS), ANALOG SYSTEMS, THEORY, INCOMPRESSIBLE FLOW, MOMENTUM, MATHEMATICAL ANALYSIS, USSR

Subject Categories : Lubricants and Hydraulic Fluids
      Machinery and Tools
      Fluid Mechanics
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE