Volume 11, 2019Progress in Propulsion Physics – Volume 11
|Page(s)||149 - 160|
|Published online||08 February 2019|
Numerical analysis of combustion for droplet of hydrazine
The Japan Aerospace Exploration Agency 3-1-1 Yoshinodai, Chuuou, Sagamihara, Kanagawa-ken 252-2510, Japan
Several simulations of evaporation and combustion of a fuel droplet are performed as preliminary stage for the combustion simulation in the chamber of bipropellant thrusters. First, the evaporation simulation without chemical reaction for single droplets of water and n-heptane are performed. Two evaporation models such as classical equilibrium and nonequilibrium Langmuir–Knudsen models are used for the simulation, and their characteristics are studied in order to investigate the difference between the two models. Then, the accuracy of the numerical code using this study is confirmed by means of comparison with existing experimental results. Next, the evaporation simulation with chemical reaction for single droplets of hydrazine is performed and the accuracy of the numerical code is confirmed by the same way. From these simulations, it is considered that the code and the scheme using this simulation have reasonable accuracy for droplet simulation with evaporation and combustion.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.