hiaselhans / lbm-c

Lattice Boltzmann fluid flow solver implemented with CUDA

lbm-c

Lattice Boltzmann fluid flow solver implemented with CUDA

Automatically exported from code.google.com/p/lbm-c

Overview

Current Version: 0.1

LBM-C is a lattice Boltzmann 2D and 3D fluid flow solver implemented using nVidia's CUDA platform. LBM-C is written in CUDA C and is licensed under GPL v2, you are invited to use, alter and improve upon LBM-C at your own discretion. The objectives of this open source code are:

• To provide a straight-forward CUDA based implementation of the lattice Boltzmann method for modelling fluid flows
• Encourage collaboration through the nature of open source code
• Exercise the power of graphics hardware for the purposes of CFD (computational fluid dynamics)

Features

• Models may be configured through use of a simple matlab interface
• Input constants are specified through ASCII input file
• Input data in CGNS format (compatible with most post-processors, though input data format is not cgns compliant)
• Output data in CGNS format (compatible with most post-processors)

Modelling Capabilities

• Arbitrary geometries may be considered either by use of full-way bounceback or a simplified case of Nobel & Torczynski's immersed moving boundary method. The use of this boundary condition allows for simple coupling with the Discrete element method (not yet implemented), as was demonstrated by Feng et. al
• Boundary pressures may be imposed upon edges using Zhou & He's pressure boundary condition
• MRT or BGK collision dynamics
• Smagorinsky turbulence (BGK only)
• Body forces following Guo's work.
• Operates on a D2Q9 or D3Q15 lattice

Further Work

• Complete the implementation of Zhou & He's boundary condition to consider

Imposed pressure on convex corner nodes

Imposed velocity on edge's and corners

• Multiphase coupling capability, where a suitable multiphase model would ideally include purely local computation
• Discrete element method coupling for particle laden flow

Whats New

10/12/12 New Release version 0.1, includes body forces, smagorinsky turbulence, and a matlab interface for constructing and post-processing models