A numerical model for the platelet heat-pipe-cooled leading edge of hypersonic vehicle

A numerical model for the platelet heat-pipe-cooled leading edge of hypersonic vehicle

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Article ID: iaor201530085
Volume: 118
Start Page Number: 210
End Page Number: 217
Publication Date: Jan 2016
Journal: Acta Astronautica
Authors: ,
Keywords: engineering, simulation
Abstract:

A new design, the platelet heat-pipe-cooled leading edge, is discussed for the thermal management to prevent damage to hypersonic vehicle leading edge component. For calculating the steady state behavior of platelet heat-pipe-cooled leading edge, a numerical model based on the principles of evaporation, convection, and condensation of a working fluid is presented. And then its effectiveness is validated by comparing the wall and vapor temperature against experimental data for a conventional heat pipe. Further investigations indicate that alloy IN718, with sodium as the working fluid is a feasible combination for Mach 8 flight with a 15mm leading edge radius.

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