Physical interpretation of flow and heat transfer in preswirl systems
Lewis, P., Wilson, M., Lock, G. and Owen, J. M., 2007. Physical interpretation of flow and heat transfer in preswirl systems. Journal of Engineering for Gas Turbines and Power: Transactions of the ASME, 129 (3), pp. 769-777.
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This paper compares heat transfer measurements from a preswirl rotor-stator experiment with three-dimensional (3D) steady-state results from a commercial computational fluid dynamics (CFD) code. The measured distribution of Nusselt number on the rotor surface was obtained from a scaled model of a gas turbine rotor-stator system, where the flow structure is representative of that found in an engine. Computations were carried out using a coupled multigrid Reynolds-averaged Navier-Stokes (RANS) solver with a high Reynolds number k-epsilon/k-omega turbulence model. Previous work has identified three parameters governing heat transfer: rotational Reynolds number (Re-phi), preswirl ratio(beta(p)) and the turbulent flow parameter (lambda(T)). For this study rotational Reynolds numbers are in the range 0.8 * 10(6)
|Creators||Lewis, P., Wilson, M., Lock, G. and Owen, J. M.|
|Departments||Faculty of Engineering & Design > Mechanical Engineering|
|Research Centres||Aerospace Engineering Research Centre|
|Additional Information||ID number: ISI:000248358600018|
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