基于GPU和物理模型的油田井喷着火仿真  

Oilfield Blowout Fire Simulation Based on GPU and Physical Model

作　　者：任庆东[1] 杨晓丹[1] 刘贤梅[1] 刘亚梅[2] 

机构地区：[1]东北石油大学计算机与信息技术学院,黑龙江大庆163318 [2]大庆油田有限责任公司第六采油厂,黑龙江大庆163114

出　　处：《计算机仿真》2012年第7期264-268,共5页Computer Simulation

基　　金：黑龙江省教育厅科学技术研究项目(12511011);黑龙江省研究生创新科研项目(YJSCX2011-109HLJ)

摘　　要：为了实现油田井喷着火仿真,分析了油田井喷着火的特有物理属性,针对传统方法实时性和火喷连续性差,缺乏真实效果,提出利用流体模型和燃烧公式相结合的方法确定油田井喷着火的物理模型,并通过黑体辐射与粒子系统相结合的方法实现火焰的绘制。通过Helmholtz-Hodge分解,分别计算N-S方程的对流项、扩散项、投影项。将GPU应用到火焰的住址和绘制过程中,利用GPU的并行性和可编程性,能够提高N-S方程的求解速度和粒子系统的计算速度,节约计算时间,高效地实现油田井喷着火仿真效果。To realize the oilfield blowout fire simulation, the special physical attributes of oilfield blowout fire were analyzed, the physical model of oilfield blowout fire simulation was confirmed by fluid model united with com- bustion formula, and fire rendering was made with a combination of blackbody radiation and particle system. After- wards, the advection, diffusion and projection in the navier-stokes equation were calculated after the Helmholtz- Hodge decomposition. The GPU was applied to the fire simulation and rendering process. Finally, the parallelism and programmability of GPU enhanced the navier-stokes equation computation speed and particle system calculation speed, which saves the calculation time, and realizes oilfield blowout fire simulation efficiently.

关 键 词：井喷着火 图形处理器 物理模型 火焰仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]