Affiliation:
1. Mechanical Engineering Department, Texas A&M University, College Station, Texas 77845
Abstract
Hydrostatic journal bearings handling low viscosity cryogenic liquids operate under extreme conditions of external pressurization. The regime of operation of these bearings is fully turbulent with large fluid inertia effects. Furthermore, cryogenic liquid propeties depend strongly on the local pressure and affect the bearing leakage and force response. The turbulent flow of a barotropic cryogenic fluid in a hydrostatic bearing is considered. Advection fluid inertia, recess-edge fluid inertia and liquid compressibility, and bearing surface roughnesses are included in the analysis. Numerical results for a liquid hydrogen hydrostatic bearing show that an incompressible fluid model overpredicts flow rate and force coefficients when compared to the more realistic barotropic fluid model.
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials
Cited by
30 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献