Authors Borkar A.V., Tsamopoulos J.A. Abstract Start-up flow of an Upper Convected Maxwell (UCM) fluid over a disk set in rotation is studied by using analytical and numerical methods. Both instantaneous acceleration and linear ramping are considered. A power series expansion is used to calculate velocity and stress analytically at […]
1994
3 posts
Authors Borkar A.V., Tsamopoulos J.A., Gupta S.A., Gupta R.K. Abstract Spin coating of two commercially used polymer solutions is studied both theoretically and experimentally. Physical and rheological characterization of these solutions indicates that under the spinning conditions currently used they behave as nonvolatile, viscoelastic fluids with constant viscosity and elasticity. […]
Authors Tsamopoulos J., Borkar A. Abstract The transient flow of an Oldroyd-B fluid over an infinite disk set in rotation impulsively is studied under the similarity assumption. The unsteady velocity and stress field is calculated exactly for short times by a power series expansion in time. The order of magnitude […]