Accession Number : AD0687448

Title :   DYNAMICS OF A PAD SUPPORTED ON A HIGHLY COMPRESSIBLE GAS FILM.

Descriptive Note : Technical rept.,

Corporate Author : MECHANICAL TECHNOLOGY INC LATHAM N Y

Personal Author(s) : Hsing,F. C. ; Cheng,H. S.

Report Date : 02 APR 1969

Pagination or Media Count : 41

Abstract : The paper presents a numerical scheme capable of yielding accurate pressure profile for the transient and steady hydrodynamic gas film generated by high speed relative motion of two non-parallel surfaces. The numerical difficulties associated with high compressibility numbers for the gas film Reynolds equation were overcome by employing irregular grid-spacings based on a coordinate transformation. By coupling the fluid film solution with the equations of motion of a tilting pad, the dynamics of the mass-film interaction were treated. Results are presented for both steady-state and dynamical solutions. (Author)

Descriptors :   (*GAS BEARINGS, HYDRODYNAMICS), NUMERICAL ANALYSIS, FILMS, BOUNDARY LAYER, PRESSURE, INTERACTIONS, COMPRESSIBLE FLOW

Subject Categories : Machinery and Tools
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE