Problem of advance of the surface of contact discontinuity in the filtration of immiscible compressible fluids (the verigin problem)

1982 ◽  
Vol 23 (1) ◽  
pp. 65-80 ◽  
Author(s):  
A. M. Meirmanov
Keyword(s):  
Contact Discontinuity ◽  
Compressible Fluids ◽  
Verigin Problem

On the motion of compressible fluids

1901 ◽  
Vol s4-12 (68) ◽  
pp. 107-114
Author(s):  
J. W. Davis
Keyword(s):  
Compressible Fluids

Interface stability of compressible fluids in porous media

2021 ◽  
Vol 33 (8) ◽  
pp. 084102
Author(s):  
Thi Thai Le ◽  
Thorsten Koch
Keyword(s):  
Porous Media ◽  
Compressible Fluids ◽  
Interface Stability

Motion of saturation discontinuities during filtration of two-component compressible fluids

1969 ◽  
Vol 1 (4) ◽  
pp. 87-90
Author(s):  
Yu. I. Stklyanin ◽  
V. A. Tomel'gas
Keyword(s):  
Compressible Fluids ◽  
Two Component

Numerical and Experimental Investigations on Preload Effects in Air Foil Journal Bearings

2017 ◽  
Author(s):  
Marcel Mahner ◽  
Pu Li ◽  
Andreas Lehn ◽  
Bernhard Schweizer
Keyword(s):  
Reynolds Equation ◽  
Journal Bearing ◽  
Journal Bearings ◽  
Compressible Fluids ◽  
Experimental Investigations ◽  
Hysteresis Curves ◽  
Numerical Predictions ◽  
Bearing Stiffness ◽  
Gasdynamic Model ◽  
Good Agreement

A detailed elasto-gasdynamic model of a preloaded three-pad air foil journal bearing is presented. Bump and top foil deflections are herein calculated with a nonlinear beamshell theory according to Reissner. The 2D pressure distribution in each bearing pad is described by the Reynolds equation for compressible fluids. With this model, the influence of the assembly preload on the static bearing hysteresis as well as on the aerodynamic bearing performance is investigated. For the purpose of model validation, the predicted hysteresis curves are compared with measured curves. The numerically predicted and the measured hysteresis curves show a good agreement. The numerical predictions exhibit that the assembly preload increases the bearing stiffness (in particular for moderate shaft displacements) and the bearing damping.

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