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Thermal-Structure Coupling Numerical Simulation of a Special-Type Plug Nozzle

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Abstract:

Two-dimensional transient heat transfer model of the plug of regenerative cooling plug nozzle is built. Based on the convective heat-transfer coefficient and the radiation heat flux obtained using analytic method and axisymmetric unstructured Delaunay grid applied to mesh the simplified physical model, numerical simulations of transient temperature field and thermal distortion are carried out by finite element method combined with thermal-structure coupling theory. Not only the results of numerical calculation under working conditions with and without regenerative cooling, but the results under low and high working conditions are compared. The results shows that thermal distortion can be reduced effectively when regenerative cooling method is adopted in the throat and combustion chamber that have the most serious thermal condition.

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Periodical:

Advanced Materials Research (Volumes 217-218)

Pages:

1510-1515

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.217-218.1510

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Online since:

March 2011

Authors:

Bo Yi Zhang, Wei Qiang Liu

Keywords:

Finite Element Model (FEM), Numerical Simulation, Plug, Plug Nozzle, Regenerative Cooling, Thermal Distortion

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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