Computational Investigation of Flow Separation and Wake Dynamics Around a Bluff Body Using Lattice Boltzmann-Based CFD

Author(s)	Mr Ranjan Kumar, Dr. Ashok Kumar Baranwal
Country	India
Abstract	This study investigates flow separation, wake dynamics, and vortex shedding around a cuboid bluff body inside a wind tunnel using the SankhyaSutra Taral v2.1 solver based on the Lattice Boltzmann Method (LBM). Simulations capture key unsteady aerodynamic phenomena, including shear-layer instability, downstream pressure deficit, periodic vortex shedding, pressure fluctuations, and variations in the velocity field. The results demonstrate the ability of the LBM to accurately resolve complex transient flow behavior, providing reliable information on bluff-body aerodynamics that is comparable to observations from physical wind tunnel experiments
Keywords	Lattice Boltzmann Method, Cuboid Bluff Body, Wake Flow, Unsteady Aerodynamics.
Field	Engineering
Published In	Volume 8, Issue 2, March-April 2026
Published On	2026-03-16
DOI	https://doi.org/10.36948/ijfmr.2026.v08i02.71749

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