Second law analysis for microscale flow and heat transfer |
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| Affiliation: | 1. Department of Mechanical Engineering, Cleveland State University, 2121 Euclid Avenue, SH 232, Cleveland, OH 44115-2425, USA;2. Thermal Structures Branch, Air Vehicles Directorate, Air Force Research Laboratory, Wright Patterson Air Force Base, OH 45433, USA;1. Department of Mathematics, Quaid-I-Azam University 45320, Islamabad, 44000, Pakistan;2. Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, P. O. Box 80257, Jeddah, 21589, Saudi Arabia;1. Department of Thermal Engineering, Tsinghua University, Beijing, China;2. Faculty of Engineering, University of Nottingham, Nottingham, UK;1. Institute of Business and Computer Sciences, The University of Agriculture Peshawar, Pakistan;2. Department of Mathematics, City University of Science and Information Technology, Peshawar 25000, Pakistan;3. Computational Analysis Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam;4. Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City, Vietnam;5. Basic Engineering Sciences Department, College of Engineering Majmaah University, Majmaah 11952, Saudi Arabia;1. Fluid Dynamics Laboratory, Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;2. Energy Technology Laboratory, Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;3. Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton VIC 3169, Australia;4. Swinburne University of Technology, Hawthorn VIC 3122, Australia;1. Instituto de Ingeniería, Universidad Nacional Autónoma de México, 04510, México City, Mexico;2. Instituto Tecnológico de Estudios Superiores de Coacalco, 55700, Coacalco de Berriozábal, Mexico |
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| Abstract: | In phase change transport devices, capillary forces drive overall circulation of working fluid from an evaporator section to a condenser section, whereas the thin film flows at the evaporating meniscus are driven by capillary and disjoining pressure gradient. An analysis has been provided for the microscale fluid flow and heat transfer in an evaporating extended meniscus. Using the second law of thermodynamics, the entropy generated has been investigated. The geometric configuration that corresponds to the minimization of entropy generated and minimization of fluid flow resistance is identified. |
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