Numerical study of liquid flow and heat transfer in rectangular microchannel with longitudinal vortex generators
By Amin Ebrahimi, Ehsan Roohi, S. Kheradmand. 2015
186 citations recorded by the source corpus.
Abstract The liquid flow and conjugated heat transfer performance of single phase laminar flow in rectangular microchannels equipped with longitudinal vortex generators (LVGs) are numerically investigated. Deionized-water with temperature-dependent thermo-physical properties is employed to conduct the simulations. Three dimensional simulations are performed using an open-source flow solver based on finite volume approach and SIMPLEC algorithm. Five different configurations of the microchannel with different angles of attack of the LVGs are considered. Simulation results are compared with available experimental data and a deviation below 10% is achieved. The results show that for Reynolds number ranged from 100 to 1100, there is a 2–25% increase in the Nusselt number for microchannels with LVGs, while the friction factor increased by 4–30%. Except one at Re = 100, the overall performance of the all configurations of microchannels with LVGs is higher than ones without LVG's.
Subfields: Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/11507bf4b27d4a5f468d9e379f17ab8752bb319d
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Citations in the corpus
- Heat transfer and entropy generation in a microchannel with longitudinal vortex generators using Nanofluids (2016, unknown): “Based on the these assumptions, the continuity, momentum, and energy equations for a steady-state flow can be written, respectively, as [45]:”
- The effect of attack angle of triangular ribs on heat transfer of nanofluids in a microchannel (2018, background): “Fanning friction coefficient can be obtained from [38]:”