For explosion process of gas cloud in closed vessels, flow field parameters, such as pressure, velocity, density, temperature, concentration and so on, vary with time and space.

对于球形密闭容器内气云的爆炸过程，压力、速度、密度、温度、浓度等流场参数均随时间、空间而发生变化。

youdao

The flame thickness in gas explosion were investigated by a lab explosion, and the temperature field in the experiment was observed by computer simulation.

本文通过实验的方法，探讨了瓦斯爆炸过程中火焰厚度变化特性及其影响因素，并对瓦斯爆炸过程中的温度场变化进行了数值模拟。

youdao