Cylinder Flow Simulation Using Lattice Boltzmann Method in MATLAB

This MATLAB-based cylinder flow simulation program using the Lattice Boltzmann Method (LBM) provides a powerful approach for simulating and analyzing fluid dynamics phenomena. The implementation utilizes the LBM algorithm which discretizes the Boltzmann equation on a lattice grid, offering advantages in handling complex boundary conditions like cylinder surfaces. Through this program, users can easily simulate flow around cylinders without requiring additional complex software packages. The code employs key LBM components including collision and streaming operations, bounce-back boundary conditions for the cylinder surface, and macroscopic variable calculation from particle distribution functions. The method enables better understanding and analysis of fluid behavior, facilitating research into various hydrodynamic phenomena. The program's modular structure allows for customization and modification according to specific requirements, making it highly adaptable to different application scenarios. Additionally, the implementation includes sophisticated visualization capabilities that provide intuitive insights into fluid behavior and properties. The code generates velocity fields, pressure distributions, and vortex shedding patterns around the cylinder, with options for real-time animation and data export. This visualization framework helps researchers observe flow separation, vortex formation, and other critical flow characteristics with exceptional clarity.