The variations of heat transfer and slip velocity of FMWNT-water nano-fluid along the micro-channel in the lack and presence of a magnetic field |
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| Institution: | 1. Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;2. Shahrekord University, Faculty of Engineering, P.O. Box 115, Shahrekord, Iran;1. School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, PR China;2. Institute of New Energy and Low Carbon Technology, Sichuan University, Chengdu 610041, PR China;1. School of Civil Engineering, Shandong University, Jinan 250061, China;2. School of Mechanical Engineering, Shandong University, Jinan 250061, China;3. Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, China;1. Institute of Super Microstructure and Ultrafast Process in Advanced Materials, College of Physics and Electronics, Central South University, 605 South Lushan Road, Changsha 410012, PR China;2. Hunan Key Laboratory for Super-microstructure and Ultrafast Process, Central South University, 932 South Lushan Road, Changsha 410012, PR China;3. Department of Physics and Astronomy, University of Rochester, Rochester, NY 14534, USA;1. Departamento de Investigación en Física, Universidad de Sonora, Apdo. Postal 5-88, 83190 Hermosillo, Sonora, México;2. CONACYT - Departamento de Investigación en Física, Universidad de Sonora, Apdo. Postal 5-88, 83190, Hermosillo, Sonora, México;3. Grupo de Espectroscopia y Laser, Universidad Popular del Cesar, C.P. 2503 Valledupar, Cesar, Colombia;4. Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, Rosales y Luis Encinas S/N, Hermosillo, Sonora, México;1. College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;2. School of Physics, Shandong University, Jinan 250100, China |
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| Abstract: | Simulation of forced convection of FMWNT-water (functionalized multi-walled carbon nano-tubes) nano-fluid in a micro-channel under a magnetic field in slip flow regime is performed. The micro-channel wall is divided into two portions. The micro-channel entrance is insulated while the rest of length of the micro-channel has constant temperature (TC). Moreover, the micro-channel domain is exposed to a magnetic ?eld with constant strength of B0. High temperature nano-fluid (TH) enters the micro-channel and exposed to its cold walls. Slip velocity boundary condition along the walls of the micro-channel is considered. Governing equations are numerically solved using FORTRAN computer code based on the SIMPLE algorithm. Results are presented as the velocity, temperature, and Nusselt number profiles. Greater Reynolds number, Hartmann number, and volume fraction related to more heat transfer rate; however, the effects of Ha and ? are more noteworthy at higher Re. |
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| Keywords: | FMWNT-water nano-fluid Magneto hydrodynamics Micro-channel Slip velocity Nusselt number |
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