Computer simulation using particles
Computer simulation using particles
Inviscid axisymmetrization of an elliptical vortex
Journal of Computational Physics
B-spline method and zonal grids for simulations of complex turbulent flows
Journal of Computational Physics
Vortex methods with spatially varying cores
Journal of Computational Physics
Blending Finite-Difference and Vortex Methods for Incompressible Flow Computations
SIAM Journal on Scientific Computing
An Immersed Interface Method for Incompressible Navier-Stokes Equations
SIAM Journal on Scientific Computing
Lattice-Based Flow Field Modeling
IEEE Transactions on Visualization and Computer Graphics
An Adaptive Wavelet Collocation Method for Fluid-Structure Interaction at High Reynolds Numbers
SIAM Journal on Scientific Computing
Journal of Computational Physics
Vortex methods for incompressible flow simulations on the GPU
The Visual Computer: International Journal of Computer Graphics
Fast multipole methods on graphics processors
Journal of Computational Physics
Journal of Computational Physics
High performance discrete Fourier transforms on graphics processors
Proceedings of the 2008 ACM/IEEE conference on Supercomputing
Large calculation of the flow over a hypersonic vehicle using a GPU
Journal of Computational Physics
Journal of Computational Physics
Shape optimization for drag reduction in linked bodies using evolution strategies
Computers and Structures
GPU accelerated simulations of 3D deterministic particle transport using discrete ordinates method
Journal of Computational Physics
Simulations of single and multiple swimmers with non-divergence free deforming geometries
Journal of Computational Physics
A multiresolution remeshed Vortex-In-Cell algorithm using patches
Journal of Computational Physics
SIAM Journal on Scientific Computing
A multi-moment vortex method for 2D viscous fluids
Journal of Computational Physics
GPU and APU computations of Finite Time Lyapunov Exponent fields
Journal of Computational Physics
Direct numerical simulation of turbulence using GPU accelerated supercomputers
Journal of Computational Physics
Hi-index | 31.48 |
We present a GPU accelerated solver for simulations of bluff body flows in 2D using a remeshed vortex particle method and the vorticity formulation of the Brinkman penalization technique to enforce boundary conditions. The efficiency of the method relies on fast and accurate particle-grid interpolations on GPUs for the remeshing of the particles and the computation of the field operators. The GPU implementation uses OpenGL so as to perform efficient particle-grid operations and a CUFFT-based solver for the Poisson equation with unbounded boundary conditions. The accuracy and performance of the GPU simulations and their relative advantages/drawbacks over CPU based computations are reported in simulations of flows past an impulsively started circular cylinder from Reynolds numbers between 40 and 9500. The results indicate up to two orders of magnitude speed up of the GPU implementation over the respective CPU implementations. The accuracy of the GPU computations depends on the Re number of the flow. For Re up to 1000 there is little difference between GPU and CPU calculations but this agreement deteriorates (albeit remaining to within 5% in drag calculations) for higher Re numbers as the single precision of the GPU adversely affects the accuracy of the simulations.