基于OpenFOAM的化学危害扩散预测求解器的开发与验证

doi:10.12382/bgxb.2021.0261

兵工学报 ›› 2022, Vol. 43 ›› Issue (5): 1155-1166.doi: 10.12382/bgxb.2021.0261

基于OpenFOAM的化学危害扩散预测求解器的开发与验证

韩朝帅^1，2，诸雪征¹，顾进¹，张宏远¹，张赫³，左钦文²

（1.陆军防化学院，北京 100000； 2.军事科学院防化研究院，北京 100000； 3.陆军装备部项目管理中心，北京 100000）

上线日期:2022-03-17
通讯作者: 诸雪征（1962—），男，教授，博士生导师 E-mail:zxm4x@aiyun.com
作者简介:韩朝帅（1993—），男，助理研究员，博士研究生。E-mail:hanzaoshuai@163.com
基金资助:
国家重点研发计划项目(2018YFC0214100 )；军内重点科研项目(20191A06258)

Development and Verification of Chemical Hazard Diffusion Prediction Solver Based on OpenFOAM

HAN Chaoshuai^1,2, ZHU Xuezheng¹, GU Jin¹, ZHANG Hongyuan¹, ZHANG He³, ZUO Qinwen²

(1.Institute of NBC Defence, Beijing 100000, China; 2.Institute of Chemical Defence, Academy of Military Sciences, Beijing 100000, China; 3.Project Management Center of Army Equipment Department, Beijing 100000, China)

Online:2022-03-17

摘要/Abstract

摘要： 化学危害扩散预测是精确化防护保障的关键基础，解决化学危害扩散预测的关键是如何精确表达下垫面、建筑物、湍流对危害物的扩散影响机理。立足化学危害扩散预测实际需求，在计算流体力学软件OpenFOAM中创新性植入信息融合模块、数据同化模块、源项反演模块和智能寻优算法，设计开发适用于化学危害扩散预测的求解器ChdpFOAM，并对ChdpFOAM求解器的适用性进行实验分析。研究结果表明：ChdpFOAM求解器在下垫面相对平坦、建筑物少的区域预测精度较高，在建筑物密集区域预测精度有所下降；相对于PISOFOAM求解器，ChdpFOAM求解器的计算精度约提升6%，计算效率下降约32.57%，具备良好的可移植性和拓展性，为化学危害扩散预测提供了一种新思路与方法。

关键词: 化学危害, 扩散预测, OpenFOAM, 软件开发, 实验模拟

Abstract: The diffusion prediction of chemical hazards is the key foundation of accurate chemical defense support. The key to the diffusion prediction of chemical hazards is how to accurately express the influence mechanisms of underlying surface, buildings and turbulence on the diffusion of chemical hazards. Based on the actual needs of the diffusion prediction, the information fusion module, data assimilation module, source term inversion module and intelligent optimization algorithm are innovatively implanted into OpenFOAM, and a ChdpFOAM solver is designed and developed for the diffusion prediction of chemical hazards. Through the experimental analysis of ChdpFOAM solver, it is found that the solver has higher prediction accuracy in the area with relatively flat underlying surface and few buildings, and the prediction accuracy decreases in the area with dense buildings. Compared with PISOFOAM solver, the calculation accuracy of ChdpFOAM solver is improved by about 6%, and the calculation efficiency is reduced by about 32.57%. ChdpFOAM solver has good portability and expansibility.

Key words: chemicalhazard, diffusionprediction, OpenFOAM, softwaredevelopment, experimentalsimulation

中图分类号:

X831

韩朝帅，诸雪征，顾进，张宏远，张赫，左钦文. 基于OpenFOAM的化学危害扩散预测求解器的开发与验证[J]. 兵工学报, 2022, 43(5): 1155-1166.

HAN Chaoshuai, ZHU Xuezheng, GU Jin, ZHANG Hongyuan, ZHANG He, ZUO Qinwen. Development and Verification of Chemical Hazard Diffusion Prediction Solver Based on OpenFOAM[J]. Acta Armamentarii, 2022, 43(5): 1155-1166.

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基于OpenFOAM的化学危害扩散预测求解器的开发与验证

Development and Verification of Chemical Hazard Diffusion Prediction Solver Based on OpenFOAM

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