Unsteady circular tube flow of compressible polymeric liquids subject to pressure-dependent wall slip

• Published in: Journal of rheology (New York : 1978) Vol. 52; no. 2; pp. 507 - 525
• Main Authors: Tang, H. S., Kalyon, Dilhan M.
• Format: Journal Article
• Language: English
• Published: Melville, NY The Society of Rheology 01.03.2008; Society of Rheology
• Subjects: Applied sciences; Compressibility; Cross-disciplinary physics: materials science; rheology; Deformation; material flow; Exact sciences and technology; Flows in ducts, channels, nozzles, and conduits; Fluid dynamics; Fundamental areas of phenomenology (including applications); Instability; Mechanical properties; Organic polymers; Physicochemistry of polymers; Physics; Polymer; Pressure dependence; Properties and characterization; Rheology; Transient deformation and flow; time-dependent properties: start-up, stress relaxation, creep, recovery, etc; Tube flow; Unsteady; Wall slip; Pressure dependence; Compressibility; Tube flow; Polymer; Instability; Unsteady; Wall slip; Curved pipe; Unsteady flow; Pipe flow; Compressible liquid; Polymers; Boundary layers

A mathematical model is developed for the time-dependent circular tube flow of compressible polymeric liquids subject to pressure-dependent slip at the wall and applied to a poly (dimethyl siloxane) (PDMS). The parameters of pressure-dependent wall slip velocity and shear viscosity of the PDMS were...