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Rotating flow and heat transfer in cylindrical cavities with radial inflow

Vinod Kumar, BG, Chew, John and Hills, Nicholas (2012) Rotating flow and heat transfer in cylindrical cavities with radial inflow Proceedings of the ASME Turbo Expo, 4 (PARTS). pp. 2047-2060.

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Design and optimization of an efficient internal air system of a gas turbine requires thorough understanding of the flow and heat transfer in rotating disc cavities. The present study is devoted to numerical modelling of flow and heat transfer in a cylindrical cavity with radial inflow and comparison with the available experimental data. The simulations are carried out with axi-symmetric and 3-D sector models for various inlet swirl and rotational Reynolds numbers upto 2.1×106. The pressure coefficients and Nusselt numbers are compared with the available experimental data and integral method solutions. Two popular eddy viscosity models, the Spalart-Allmaras and the k-e , and a Reynolds stress model have been used . For cases with particularly strong vortex behaviour the eddy viscosity models show some shortcomings with the Spalart-Allmaras model giving slightly better results than the k-e model. Use of the Reynolds stress model improved the agreement with measurements for such cases. The integral method results are also found to agree well with the measurements. Copyright © 2012 by ASME.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Vinod Kumar, BG
Date : 2012
DOI : 10.1115/GT2012-68770
Depositing User : Symplectic Elements
Date Deposited : 16 Aug 2017 07:23
Last Modified : 24 Jan 2020 12:13

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