甲烷-空气预混燃烧数值模拟仿真实验设计及教学应用

Experimental Design and Teaching Application of Numerical Simulation of Methane-air Premixed Combustion

燃烧学是安全工程专业的一门理论性强、难度大的专业基础课程,其中可燃气体燃烧及火焰传播相关知识点的教学存在理论抽象、不够直观等问题。作者将理论学习、实验研究、数值模拟有机结合,基于CFD方法设计了数值模拟仿真实验系统,并以球形容器内甲烷-空气预混燃烧为例,介绍了该系统在燃烧学课程教学中的应用。实践表明,虚拟仿真实验教学能够有效增强学生对相关理论知识的理解,充分调动学生的学习积极性,提升课程的高阶性、创新性和挑战度。

Combustion Science is a highly theoretical and difficult basic course of safety engineering.In the teaching of combustible gas combustion and flame propagation,some problems exists,such as abstract theory and low intuitiveness.We combines theoretical learning,experimental research and numerical simulation,and designs a numerical simulation experiment system based on CFD method.Taking methane-air premixed combustion in a spherical container as an example,this system is applied in the course teaching.The practice shows that the application of the numerical simulation experiment system can effectively improve students'understanding on relevant theoretical knowledge,fully motivates students'enthusiasm,and further enhance the advanced,innovative and challenging degree of the course.