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Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)

ISBN Druckformat: 978-1-56700-497-7 (Flash Drive)
ISBN Online: 978-1-56700-496-0

Entropy Generation in a Viscoelastic Fluid Squeezed and Extruded Between Two Parallel Plates

DOI: 10.1615/IHMTC-2019.980
pages 581-585

Saddam Hossain Mullick
Department of Mechanical Engineering, NIT Sikkim, Ravangla, South Sikkim 737139, India

P. Kaushik
Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India; Department of Mechanical Engineering, Ramaiah Institute of Technology, Bengaluru, Karnataka 560054, India; Department of Mechanical Engineering, NIT Tiruchirappalli, Tamil Nadu 620015, India

Pranab Kumar Mondal
Indian Institute of Technology, Guwahati-781039, Assam, India

Pranab Kumar Kundu
Department of Mechanical Engineering, NIT Sikkim, Ravangla, South Sikkim 737139, India

Abstrakt

There are several engineering devices where simultaneous squeezing and extrusion of viscoelastic fluids take place. Thermodynamic analysis of these phenomena are important from the context of designing of these devices as these involve generation of several irreversibilities. In the present theoretical investigation, we extensively analyse the entropy generation characteristics of such devices through Oldroyd-B model. We represent the combined effects of fluid rheology, and squeezing-extrusion mechanism on the entropy generation characteristics. The thermodynamics performances of these engineering devices with applications having simultaneous squeezing and extrusion of viscoelastic fluid can be enhanced through process parameter optimization using our study.