Flow of a simple viscoelastic fluid in a thin lubricating oil
Abstract
The flow of a thin viscoelastic fluid in an interstice between a plane and an infinite flat surface not parallel to the plane is calculated. The rheologic properties of the fluid are represented with an equation demonstrating its basic viscosimetric functions. The equation is solved using a recurrence perturbation method that is dependent on a parameter that combines material functions and geometric parameters. The findings demonstrate that in cases of thin interstices, an analytic solution both for the resolution of the flow of a liquid and for the resolution of stress effects is possible to obtain. The essential features of the described work are the use of a general rheologic model and the possibility of interpreting the results obtained for liquid disintegrating speed.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 1983
 Bibcode:
 1983STIN...8429145G
 Keywords:

 Fluid Mechanics;
 Lubricating Oils;
 Perturbation Theory;
 Rheology;
 Stress Analysis;
 Additives;
 Fluid Flow;
 Gears;
 Polymerization;
 Relaxation (Mechanics);
 Viscoelasticity;
 Fluid Mechanics and Heat Transfer