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This chapter integrates the roughness-transition model with the VLES methodology, developing a hybrid prediction model for transition-separated flows applicable to rough walls. Validated through representative test cases including the V103 compressor cascade and Pak-B turbine blade, the proposed approach achieves simulation accuracy comparable to LES methods while demonstrating significantly reduced computational costs.

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Modeling and Application of the VLES Method Considering the Influence of Transition and Surface Roughness

  • 章节

  • 发表日期：

    2025年

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  • Jiakuan Xu,
  • Min Chang,
  • Junqiang Bai

摘要

This chapter integrates the roughness-transition model with the VLES methodology, developing a hybrid prediction model for transition-separated flows applicable to rough walls. Validated through representative test cases including the V103 compressor cascade and Pak-B turbine blade, the proposed approach achieves simulation accuracy comparable to LES methods while demonstrating significantly reduced computational costs.