Comparison Of Laminar And Turbulent Model Of Water Flow In Microchannel

Ahmed Fauzi, Mohamed Fiqri (2018) Comparison Of Laminar And Turbulent Model Of Water Flow In Microchannel. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

A flow can be laminar, turbulent or transitional in nature. This become a very important classification of flow. Laminar and turbulent flow can be test to get the different of the result. The objective of this study are to find temperature distribution, mesh independent test, entrance length and find Nusselt number and the different between laminar and turbulent flow. Temperature distribution can be conduct with running the simulation that the domain have been create using software. Software that have been using in this experiment to draw the domain is GAMBIT software and that was one of the method in this study. The simulation need to consider the material use and boundary condition. Then run the simulation with iterate is set to 1000 and when the worlds converge appear the simulation will stop and the running of simulation is done. To make the simulation is valid, the numerical code is verified by contrasting or comparing it with available analytical solution or widely accepted numerical results. The largest deviation between simulation result from Qu and Mudawar result is 13.1%. The simulation is considered as valid since the simulation is showing the identical pattern. Temperature distribution can be seen in the contour where the temperature at the inlet, middle and outlet is different. The finding shows that temperature for the laminar and turbulent flow is different. Analyses data showed that turbulent flow temperature is higher than laminar. The range of hydraulic diameter are between 8.658 x 10-5 to 2.52 x 10-5. Average range for Nusselt number in this project is between 4 to 40 Nusselt numbers. Turbulent method was using k-epsilon in simulation.

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