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Leakage performance predictions of a brush seal based on fluid-solid coupling method
Chang Yue1, Sun Bitian1, Zhang Lanzhu1
1East China University of Science and Technology, Shanghai, China.
Abstract:
The sealing performance of a brush seal is studied in this article. At present, the mostly used model to analyze the performance of a brush seal is porous medium model in which the effect of bristle deformation is not considered. Here, a combined numerical method is proposed. First, the deformation of bristle is calculated in a fluid-solid coupling model with a simplified bristle model, and then the results of the bristle deformation is imported to a porous media model as the boundary conditions. More accurate media flow and leakage variation law of the brush seal are obtained with this calculation model.
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