Intercooled Aero-Gas-Turbine Duct Aerodynamics: Core Air Delivery Ducts

Walker, Donald G.; Regunath, Gavita S.; Carrotte, J. F.; Denman, Paul A.

doi:10.2514/1.b34450

Cited by 3 publications

(1 citation statement)

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“…Walker et al. 8,9 have, in their experimental and computational work on developing a ducting system for a single pass corrugated intercooler, summarized what the desired internal ducting system must provide to work satisfactorily; a low aerodynamic loss combined with a uniform flow distribution through the heat transfer units in order to achieve a high cooling effectiveness. On the internal side of the intercooler studied herein, the connecting ducts incur a considerable part of the total pressure loss while their contribution to heat transfer is negligible.…”

Section: Introductionmentioning

confidence: 99%

Conceptual design of a two-pass cross-flow aeroengine intercooler

Zhao

Grönstedt

2014

Proceedings of the Institution of Mechanical Engineers, Part G:

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Establishing an optimal intercooled aeroengine constitutes a coupled problem where the conceptual design of the intercooler and the engine has to be considered simultaneously. The heat transfer and pressure loss characteristics will depend on the choice of the intercooler architecture. Hence, to be able to optimize the performance of an intercooled aeroengine, the performance characteristics of a given intercooler architecture has to be known in the parameter range anticipated for the aeroengine optimization. Here, the conceptual design of a tubular two-pass crossflow intercooler architecture intended for a turbofan aeroengine application is presented. The internal flow is simulated applying a porous media model for the intercooler tubes, whereas the connecting ducts are analyzed with threedimensional simulations allowing the assessment of a number of design solutions. The external flow is treated with two-dimensional simulations investigating the external pressure loss and heat transfer characteristics of the two elliptical tube stacks. The intercooler performance is then generalized by developing a reduced order correlation covering a parameter range anticipated for a turbofan conceptual design optimization. The paper constitutes a first effort to establish an open literature complete set of correlations for the prediction of aeroengine intercooler performance.

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Section: Introductionmentioning

confidence: 99%