波形板干燥器内液滴模拟的GPU加速研究

GPU Accelerated Droplets Simulation in Wave-type Vane Dryer

基于CUDA C,使用GPU模拟了波形板内大量液滴的二维运动。根据GPU硬件特性,优化了模拟算法。在CPU上实现相同算法,对比了单一液滴直径、不同液滴数量下GPU与CPU的计算时间。结果表明:液滴数量越大,GPU并行加速效果越明显,在液滴数量较大时,得到约60倍的加速。用GPU分析了典型液滴直径分布的情况,得到约30倍的加速。

Droplets’ two‐dimensional dynamic simulation was performed by GPU based on CUDA C .The simulation algorithm was optimized considering hardware characteris‐tics of GPU parallel computation .The same algorithm was carried out by CPU .The computing time of GPU was compared to that of CPU for the cases with single droplet diameter but different droplet numbers .The results show that the larger the number of water droplets is ,the more obvious the GPU parallel acceleration effect is .In the case with large number of water droplets ,about 60 times speedup is achieved .And the com‐puting time of GPU for the case with a typical distribution of multiple droplet diameters obtains about 30 times speedup .