| Summary: | 碩士 === 國立虎尾科技大學 === 車輛工程系碩士班 === 104 === This research numerically explores the thermal and flow fields of a rectangular cavity filled with nanofluid under the combining action of lid-driven velocity and natural convection. The top surface and bottom surfaces are fixed in constant temperature and constant heat flux, respectively. The right and left sides are set in thermal insulation conditions. A second order up wind finite volume method is used to solve the continuity, momentum and energy equations. Different nanofluid volume fraction, baffle number, lid-driven velocity, baffle height and cavity height are assigned to investigate their effects on thermal and flow fields.
Finally, the Taguchi method and response surface methodology are applied to obtain a set of optimal parameters and the result is show =5%, u=0.082m/sec, cavity height=1cm and baffle height=0.1cm to be the optimal ,parameter comsination among the ranges for different parameters in this study.
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