期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：2
页码：566-572
出版社：University of Mohammed Premier Oujda
摘要：The present work concerns the study of Numerical analysis on the fluid flow and heat transfer incorrugated channel with various geometry configurations, under constant heat flux conditions isconsidered. This is largely studied both experimentally and numerically due to their wide industrialapplication in various fields such as nuclear reactor urgency, solar boiler, heat exchangers and thermosiphon solar capturers, etc. A great deal of relevant research work consists of numerical simulations offorced convection mechanisms with turbulent flows in corrugated channel. We are interested indetermining the flow for various amplitudes and periods. The influence of geometry on several factorssuch as: temperature, the local Nusselt number, friction number, turbulent kinetic energy k and itsdissipation are considered. Based on the Navier-Stokes equations, these equations were solved by aCFD technique using the Finite Volume Method. The results show that when we gradually increasethe amplitudes of the protuberance part (say a=0.03, a=0.06,) the maximal temperature increases withthe increase of amplitude. This is due to the rise of the heat transfer surface of the modified wall.Regarding heat transfer parameters, the results show that the number of local Nusselt variesaccordingly with the amplitudes and number of periods. This explains that the modified wall isaffected locally by a pure conduction. The results of this study are expected to lead to guidelineswhich will allow the selected wavy channel geometry configuration for designing heat exchanger thatincrease thermal performance.
关键词：Forced Convection; K; model; CFD; Nusselt number
