利用地理格网计算方法模拟放射性气体扩散

Radioactive gas diffusion simulation based on geographic grid computing

传统放射性气体扩散计算方法多适合理想的地理环境,未充分考虑复杂地理环境的影响。为提高传统方法在复杂地理环境下,放射性气体扩散模拟的真实性与效率,建立利用地理格网模拟放射性气体扩散的方法,描述利用地理格网计算模型进行气体扩散模拟的方法原理与实现流程。最后用此方法模拟某一复杂风场与地形环境下放射性核素的扩散过程。结果表明:利用地理网格进行放射性气体扩散模拟,能够模拟复杂的地理环境中的扩散,能充分考虑复杂风场、地形、气体干沉积与放射性衰变的综合影响,实现放射性气体扩散的快速动态可视化。

Traditional methods for simulating toxic gas diffusion are always suitable to be used under an ideal and stable environment condition,and the factors in a complex geographic environment are not considered comprehensively. In order to improve the reality and efficiency of the traditional simulation methods,a geographic grid computing-based simulation method was worked out for gas diffusion. The principles and the implementation flow of the method were described. Finally,the method was used to simulate the diffusion radioactive gas dynamic process in a certain complex environment. The results show that this method can be used to simulate gas diffusion in a complex environment,reflect effects of the parameters on the diffusion process,and realize dynamic visualization of the diffusion process.