Engineering with Computers

, Volume 31, Issue 3, pp 545–560 | Cite as

A closed advancing-layer method with connectivity optimization-based mesh movement for viscous mesh generation

Original Article
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Abstract

A new closed advancing-layer method for generating high-aspect-ratio elements in the boundary-layer (BL) region is presented. This approach utilizes a recent connectivity optimization-based moving mesh strategy for deforming the volume mesh as the BL is inflated. It handles very efficiently BL front collision and produces a natural smooth anisotropic blending between colliding layers. Moreover, it provides a robust strategy to couple unstructured anisotropic mesh adaptation and high-aspect-ratio elements pseudo-structured BL meshes. The proposed method is directly compared to a well-established open advancing-layer method. Results for typical aerospace configurations are presented that provide a clear comparison between both methods as well as the effectiveness of the connectivity optimization-based moving mesh strategy. They show that the closed method yields similar results in terms of mesh quality and efficiency, and that the considered moving mesh strategy is an efficient and effective method for deforming the unstructured volume mesh.

Keywords

Unstructured mesh generation Advancing-layer Boundary-layer mesh Viscous grid Moving mesh 
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Copyright information

© Springer-Verlag London 2014

Authors and Affiliations

  1. 1.Gamma3 Team, INRIA Paris-RocquencourtLe ChesnayFrance
  2. 2.Mechanical Engineering Department, Center for Advanced Vehicular Systems (CAVS)Mississippi State UniversityMississippiUSA

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