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Analysis of wettability is essential for studying the characteristics of molecules, surfaces, and materials and their effect on flow past bluff bodies. This study employs a 2D pseudo-potential multiphase lattice Boltzmann method (PPMLBM) using a D2Q9 model to investigate how wettability influences flow around a triangular cylinder. The focus is on calculating the drag coefficient and evaluating the precision of the numerical model, the study considers the domain of a 1000 × 200 lattice unit domain, a triangular cylinder having a base of 30 lattice units and 40 lattice units of height are used to assess the fluid flow and drag coefficients. According to the outcomes, there is a rise in the drag coefficient concerning the increase in wettability. The impact of the Reynolds number on the fluid flow and drag is also highlighted in the study.

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Effect of Hydrophobicity in Flow Past a Triangular Cylinder: A Numerical Approach

  • 会议论文

  • 发表日期：

    2026年

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  • Ganesh Sahadeo Meshram,
  • Gloria Biswal,
  • Ashish B. Khelkar

摘要

Analysis of wettability is essential for studying the characteristics of molecules, surfaces, and materials and their effect on flow past bluff bodies. This study employs a 2D pseudo-potential multiphase lattice Boltzmann method (PPMLBM) using a D2Q9 model to investigate how wettability influences flow around a triangular cylinder. The focus is on calculating the drag coefficient and evaluating the precision of the numerical model, the study considers the domain of a 1000 × 200 lattice unit domain, a triangular cylinder having a base of 30 lattice units and 40 lattice units of height are used to assess the fluid flow and drag coefficients. According to the outcomes, there is a rise in the drag coefficient concerning the increase in wettability. The impact of the Reynolds number on the fluid flow and drag is also highlighted in the study.