Review of atomization and mixing characteristics of pintle injectors

F Zhao, H Zhang, H Zhang, B Bai, L Zhao - Acta Astronautica, 2022 - Elsevier
To promote the design and optimization as well as a deeper understanding of pintle
injectors further, the progress on atomization and mixing characteristics of pintle injectors …

Experimental and numerical investigations on the spray characteristics of liquid-gas pintle injector

W Zhou, X Xu, Q Yang, R Zhao, Y ** - Aerospace Science and Technology, 2022 - Elsevier
The spray characteristics of a liquid-gas pintle injector at different total momentum ratios
(TMR) are investigated by means of experiment and numerical simulation. Water and …

Review of flow control for atomization and sprays: Application section

W He, Z Luo, X Deng, S Feng, T Gao, Z Dong - International Journal of Heat …, 2025 - Elsevier
The enhancement and inhibition of atomization and sprays cover various fields such as
industry, agriculture, and biomedical, among others. However, due to the complex …

Spray combustion characteristics of a gas–liquid pintle injector with variable swirl intensities

C He, W Luo, P Zhang, Z He, L Yue - Physics of Fluids, 2023 - pubs.aip.org
The present paper experimentally verified and computationally explained an improved
design concept of the spray combustion of a gas–liquid pintle injector with variable swirl …

On the prediction of spray angle of liquid-liquid pintle injectors

P Cheng, Q Li, S Xu, Z Kang - Acta Astronautica, 2017 - Elsevier
The pintle injector is famous for its capability of deep throttling and low cost. However, the
pintle injector has been seldom investigated. To get a good prediction of the spray angle of …

Design of pintle injector using Kerosene-LOx as propellant and solving the problem of pintle tip thermal damage in hot firing test

D Kang, S Han, C Ryu, Y Ko - Acta Astronautica, 2022 - Elsevier
The pintle injector is considered to have high reliability because it can control engine thrust
by adjusting propellant flow rate via adjusting the orifice area and is strong against …

Effects of skip distance on the spray characteristics of a pintle injector

S Lee, J Koo, Y Yoon - Acta Astronautica, 2021 - Elsevier
Pintle injectors have several unique features that allow high-performance thrust control of
rocket engines; thus, it can be used in reusable space launch vehicles. Because the orifice …

Experimental investigation of a flow-oriented throttleable injector designed for throttleable hybrid rocket motor

Z Zhao, G Cai, B Zhao, Y Liu, N Yu - Acta Astronautica, 2022 - Elsevier
Easily achieving thrust throttling is a significant advantage of hybrid rocket motor. To achieve
more stable combustion and reduce the pressure of the upstream feed system during the …

Spray characteristics of a multi-slit type throttleable pintle injector with different slit heights

S Heo, J Jeong, Y Yoon - Acta Astronautica, 2024 - Elsevier
A pintle injector is a type of variable-area injector that has been effectively applied in
throttleable rocket engines. Among the several types of pintle injectors, multi-slit type pintle …

Experimental and numerical investigations on flow field characteristics of pintle injector

Y Zhang, N Yu, H Tian, W Li, H Feng - Aerospace Science and Technology, 2020 - Elsevier
The objective of this study is to investigate the mechanism of mixing and atomization of
pintle injectors numerically and experimentally using water and nitrogen. During the …