基于蒙特卡洛改进算法的空间热流计算  

Calculation of Spatial Heat Flux Based on Improved Monte Carlo Algorithm

作　　者：陈杰[1] 吴晓迪[2,3,4] 杨星[2,3,4] 邵慧[1] CHEN Jie WU Xiaodi YANG Xing SHAO Hui(Department of Electronics and Information Engineering, Anhui Jianzhu University, Hefei 230601, China Key Laboratory of Infrared and Low Temperature Plasma of Anhui Province, Hefei 230037, China State Key Laboratory of Pulsed Power Laser Technology, Hefei 230037, China Electronic Engineering Institute, Hefei 230037, China)

机构地区：[1]安徽建筑大学电子与信息工程学院,安徽合肥230601 [2]红外与低温等离子体安徽省重点实验室,安徽合肥230037 [3]脉冲功率激光技术国家重点实验室,安徽合肥230037 [4]电子工程学院,安徽合肥230037

出　　处：《红外技术》2017年第1期91-94,共4页Infrared Technology

基　　金：安徽高等学校自然科学研究项目(KJ2015ZD14;KJ2016A149);国家自然科学基金(61503394);安徽省自然科学基金(1408085QF131;1508085QF121)

摘　　要：空间热流计算是空间目标热特性及红外特性分析的基础,针对传统蒙特卡洛法在计算空间目标热流时存在耗时较多的不足,提出了基于图形加速的改进的蒙特卡洛热流计算方法,并分别采用传统算法和改进算法计算了卫星的太阳热流,数值分析表明改进算法在保证同等计算精度的前提下,显著提高了卫星太阳热流的计算速度。Calculation of spatial heat flux is the base of analysis of spatial targets＇ thermal character and infrared feature. In view of time-consuming problems in calculating the spatial heat flux which exist in the traditional Monte Carlo algorithm, the improved Monte Carlo algorithm based on graphics acceleration is put forward. The satellite solar heat flux is calculated respectively by traditional algorithm and improved algorithm. And numerical analysis shows that under the premise of the same calculation accuracy guaranteed, improved algorithm significantly improves the calculation speed of satellite solar heat flux.

关 键 词：太阳热流 蒙特卡洛法 热特性 红外特性 

分 类 号：TK121[动力工程及工程热物理—工程热物理]