Numerical study on visualization of counterflow diffusion flame of sodium and water vapor in low-pressure condition

Kohara, Yoshitaka*; Yamaguchi, Akira*; Takata, Takashi*; Ohshima, Hiroyuki

We have a plan to perform a fundamental experiment to investigate the mechanism of sodium-water chemical reaction. For help in setting the experimental conditions, a numerical simulation was performed for clarifying the effect of ambient gas pressure and water vapor concentration on the position and the region of the counterflow diffusion flame of sodium and water vapor. The result shows that the area of the diffusion flame is enlarged as the gas pressure is reduced and therefore low pressure condition is recommended to keep high accuracy of measurement.