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- W2088689903 abstract "The turbulent flow and the heat transfer in a unitary cell of a cross corrugated plate pattern heat exchanger has been studied using Chen’s high-Re k-ε model, Suga’s low-Re k-ε model, the RSM and the V2F model at a Reynolds number of 4930. The ability of these models in predicting the mean Nusselt number and Fanning friction factor has been investigated. The V2F model predicted higher heat transfer and friction factors than the other models. It was observed that the upper and lower flow in the unitary cell interact throw a shear process. This in turn initiates a complex secondary flow pattern which promotes the heat transfer. The V2F model predicted the strongest shear process. This may explain the fact that it also predicted the highest values of heat transfer and friction factor compared to the other models. The shear flow also caused high levels of turbulent kinetic energy in the centre of the unitary cell. The observed secondary motion is believed to be an efficient means of increasing the heat transfer coefficient with limited pressure drop penalty. It is also demonstrated that despite the geometrical complexity, high quality computational grids can be created and thereby details of the flow and heat transfer phenomena can be studied. The RSM appeared to be instable and gave results similar to Chen’s k-ε model. Therefore, its use is not motivated for such applications." @default.
- W2088689903 created "2016-06-24" @default.
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- W2088689903 date "2007-01-01" @default.
- W2088689903 modified "2023-09-27" @default.
- W2088689903 title "CFD-Analysis of Fully Developed Turbulent Flow and Heat Transfer in a Unitary Cell of a Cross Corrugated Plate Pattern Heat Exchanger" @default.
- W2088689903 doi "https://doi.org/10.1115/ht2007-32788" @default.
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