曲线元的不连续伽辽金法设计，能准确捕捉迷宫密封的几何形状

Q4 Chemical Engineering

Applied and Computational Mechanics Pub Date : 2022-01-01 DOI:10.24132/acm.2022.732

O. Bublík, A. Pecka, J. Vimmr

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引用次数: 0

摘要

本文应用不连续伽辽金有限元法对可压缩流体在迷宫密封中的流动进行了数值模拟。本文提出了一种曲线六面体单元，它的变形使其与迷宫密封的旋转壁面完全匹配。对转子两齿、定子一齿交错篦齿密封进行了数值研究。在数值模拟中，考虑了三种不同细化的计算网格。所有的数值模拟都是在静止转子和50hz旋转转子下进行的。所得数值结果与商用CFD软件Ansys Fluent计算结果进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Curvilinear element of the discontinuous Galerkin method designed to capture the labyrinth seal geometry exactly

The present study applies the discontinuous Galerkin finite element method to a numerical simulation of a compressible fluid flow through a labyrinth seal. This paper is proposes a curvilinear hexahedral element, which is deformed in such a way that it matches the rotated walls of the labyrinth seal exactly. A numerical study is performed on the staggered labyrinth seal with two teeth on the rotor and one tooth on the stator. For numerical simulation, three computational meshes with different refinement are considered. All of the numerical simulations are performed for both stationary rotor and for rotor rotating at 50 Hz. The obtained numerical results are compared with results computed by the commercial CFD software Ansys Fluent.

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来源期刊

Applied and Computational Mechanics Engineering-Computational Mechanics

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

14 weeks

期刊介绍： The ACM journal covers a broad spectrum of topics in all fields of applied and computational mechanics with special emphasis on mathematical modelling and numerical simulations with experimental support, if relevant. Our audience is the international scientific community, academics as well as engineers interested in such disciplines. Original research papers falling into the following areas are considered for possible publication: solid mechanics, mechanics of materials, thermodynamics, biomechanics and mechanobiology, fluid-structure interaction, dynamics of multibody systems, mechatronics, vibrations and waves, reliability and durability of structures, structural damage and fracture mechanics, heterogenous media and multiscale problems, structural mechanics, experimental methods in mechanics. This list is neither exhaustive nor fixed.