Version 1
: Received: 14 April 2023 / Approved: 17 April 2023 / Online: 17 April 2023 (03:05:57 CEST)
How to cite:
Hu, Y.; Zhou, B.; Zhang, G.; Xue, R.; Wu, Y.; Liu, J. Effect of Injection Strategy on the Flow Structure and Performance of Water Ramjet Engine using Magnesium Powder. Preprints2023, 2023040377. https://doi.org/10.20944/preprints202304.0377.v1
Hu, Y.; Zhou, B.; Zhang, G.; Xue, R.; Wu, Y.; Liu, J. Effect of Injection Strategy on the Flow Structure and Performance of Water Ramjet Engine using Magnesium Powder. Preprints 2023, 2023040377. https://doi.org/10.20944/preprints202304.0377.v1
Hu, Y.; Zhou, B.; Zhang, G.; Xue, R.; Wu, Y.; Liu, J. Effect of Injection Strategy on the Flow Structure and Performance of Water Ramjet Engine using Magnesium Powder. Preprints2023, 2023040377. https://doi.org/10.20944/preprints202304.0377.v1
APA Style
Hu, Y., Zhou, B., Zhang, G., Xue, R., Wu, Y., & Liu, J. (2023). Effect of Injection Strategy on the Flow Structure and Performance of Water Ramjet Engine using Magnesium Powder. Preprints. https://doi.org/10.20944/preprints202304.0377.v1
Chicago/Turabian Style
Hu, Y., Yun-Kai Wu and Jun-Li Liu. 2023 "Effect of Injection Strategy on the Flow Structure and Performance of Water Ramjet Engine using Magnesium Powder" Preprints. https://doi.org/10.20944/preprints202304.0377.v1
Abstract
Different inlet structures have a significant impact on the internal flow characteristics of a solid-magnesium powder water ramjet engine. Based on the magnesium-water reaction model, a computational fluid dynamics (CFD) method is applied to establish a numerical simulation method for the internal flow field of the engine, and the internal flow characteristics of the engine under different inlet structure conditions are studied. The simulation results show that high-temperature gas can effectively promote the ignition of magnesium powder at the top of the combustion chamber, while accelerating the evaporation of the first inlet water and increasing the combustion rate of magnesium powder. The secondary inlet has the most significant effect on the temperature inside the combustion chamber. When the secondary inlet flow rate increases towards the top of the combustion chamber, it increases the amount of heat absorbed by the evaporating water at the top of the chamber, thereby reducing the temperature at the top of the combustion chamber. However, when the flow rate is low, it results in insufficient oxidizer at the top of the combustion chamber, which is unfavorable for the combustion of magnesium powder.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
