超临界水氧化/气化反应器的CFD模拟研究进展  

Current research processes in CFD simulation of supercritical water oxidation/gasification reactor

作　　者：唐旭 陈海峰[1] 阳明君 徐愿坚[2] 陈忠[2,3] TANG Xu;CHEN Hai-feng;YANG Ming-jun;XU Yuan-jian;CHEN Zhong(College of Mechanical and Electrical Engineering,Shaanxi University of Science & Technology,Xi’an 710021,China;Chongqing Institute of Green and Intelligent Technology,Chinese Academy of Sciences,Chongqing 400714,China;Sichuan Provincial Key Lab of Process Equipment and Control,Sichuan University of Science & Engineering,Zigong 643000,China)

机构地区：[1]陕西科技大学机电工程学院,陕西西安710021 [2]中国科学院重庆绿色智能技术研究院,重庆400714 [3]四川轻化工大学过程装备与控制工程四川省高校重点实验室,四川自贡643000

出　　处：《应用化工》2021年第2期504-510,515,共8页Applied Chemical Industry

基　　金：中国科学院西部青年学者B类项目(Y93A030M10);重庆市自然科学基金面上项目(cstc2019jcyj-msxmX0415);过程装备与控制工程四川省高校重点实验室开放基金项目(GK202001)。

摘　　要：基于前期研究和国内外相关文献,分别从数学模型、物性数据和模拟实例三个方面回溯了CFD的发展历程,综述了最新研究进展。总结出RNG k-ε、EDC分别是纯流态、湍流-化学反应两种体系普遍采用且模拟效果最好的模型,但在面对水热燃烧、水膜形成和非均相催化等典型水热过程时,仍不能有效兼顾流体力学问题与化学反应问题;其次,超临界水热环境下多相流体的基础物性数据匮乏是CFD模拟研究的另一瓶颈;最后,指出了开发新模型并结合原位探测实验新技术是未来的重点研究方向。Based on the previous research basis,the development history of CFD is reviewed from three aspects:mathematical model,physical data and simulation examples,and the latest research is revealed.It is founded that RNG k-εand EDC models,which result in the better simulation data,are commonly used in the situation of pure flow regime and turbulent-chemical reaction.While the fluid mechanics and chemical reaction cannot be effectively taken into account,when applied in typical thermal process,such as water thermal combustion,water film formation and heterogeneous catalysis.Moreover,the lack of basic physical data of multiphase fluid in supercritical hydrothermal environment is another bottleneck of CFD simulation.Therefore,the exploitation of mathematical model,which experimentally combined with the in-situ detection technology will be the key point in the future research.

关 键 词：反应器结构 水热燃烧 模拟 超临界水氧化 超临界水气化 

分 类 号：TQ09[化学工程] TQ013