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Understanding aerodynamic and hydrodynamic forces like drag and lift is crucial in designing bluff bodies and airfoils. The size and shape of these bodies, along with the flow velocity, influence the wake structure and aerodynamic forces significantly. This study focuses on computationally investigating fluid flow around a 2D triangular object (bluff body) across various Reynolds numbers. Using ANSYS Fluent flow solver, numerical simulations solve the Navier–Stokes equation with a simple algorithm, assuming the fluid is incompressible and inviscid. The results reveal a clear correlation between flow dynamics and Reynolds number (Re), showing distinct variations in aerodynamic forces as Re increases. The results highlight the significant influence of triangular size on flow dynamics and drag forces. These findings are expected to offer practical insights for optimizing the design and performance of various engineering applications.

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Examining Flow Patterns Around a Two-Dimensional Triangular Obstacle at Varying Reynolds Numbers

  • 会议论文

  • 发表日期：

    2025年

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  • Rakesh Chandra Sarkar,
  • Soumitra Mondal,
  • Sourav Dey,
  • Nitesh Mondal

摘要

Understanding aerodynamic and hydrodynamic forces like drag and lift is crucial in designing bluff bodies and airfoils. The size and shape of these bodies, along with the flow velocity, influence the wake structure and aerodynamic forces significantly. This study focuses on computationally investigating fluid flow around a 2D triangular object (bluff body) across various Reynolds numbers. Using ANSYS Fluent flow solver, numerical simulations solve the Navier–Stokes equation with a simple algorithm, assuming the fluid is incompressible and inviscid. The results reveal a clear correlation between flow dynamics and Reynolds number (Re), showing distinct variations in aerodynamic forces as Re increases. The results highlight the significant influence of triangular size on flow dynamics and drag forces. These findings are expected to offer practical insights for optimizing the design and performance of various engineering applications.