Numerical investigation on thrust characteristics of an annular expansion–deflection nozzle

G Wang, L Chen, B Guan, Y Zhang, L Zhu - Physics of Fluids, 2023 - pubs.aip.org
The thrust characteristics of a large-expansion-ratio annular expansion–deflection (ED)
nozzle are investigated based on detailed flow pattern simulations. The purpose is to build a …

Numerical investigation on thrust efficiency drop** phenomenon of annular expansion–deflection nozzles

G Wang, L Chen, B Zhou, H Yang, B Guan, G Wang - Physics of Fluids, 2021 - pubs.aip.org
The flow patterns in a large-expansion-ratio annular expansion–deflection (ED) nozzle are
numerically investigated, focusing on the flow mechanisms underlying the sudden thrust …

Noise Prediction of Multi-Stream Internally Mixed Jets With External and Internal Pligs Using Large-Eddy Simulation

GD Stich, OG Martin, C Ashby, JA Housman… - 30th AIAA/CEAS …, 2024 - arc.aiaa.org
Results from ongoing research on jet noise prediction using wall-modeled large eddy
simulations (WMLES) conducted within the Launch Ascent and Vehicle Aerodynamics …

Performance analysis of an expansion-deflection (ED) nozzle based on pintle inflection angle

J Choi, H Huh - Journal of Mechanical Science and Technology, 2022 - Springer
In expansion-deflection (ED) nozzles, an open wake or a closed wake developed depends
on the nozzle pressure ratio, and this can be used for altitude compensation nozzle of space …

Performance analysis of expansion–deflection nozzles with reduced lengths of nozzle extension at a high-altitude environment

J Lee, J Choi, H Huh - Journal of Mechanical Science and Technology, 2023 - Springer
This study investigates the performance of expansion–deflection (E–D) nozzles with
reduced lengths through experimental and numerical analyses. Two E–D nozzles were …

Technology and patent trends of altitude compensation nozzles

J Choi, T Moon, J Choi, S Park, H Kim… - Journal of the Korean …, 2018 - koreascience.kr
The altitude compensation nozzle is a nozzle designed for optimum performance at all
altitudes. A method of improving the specific impulse of the space launch vehicle is a …

[PDF][PDF] Numerical Analysis of effects of Pintle Shape on Flow in Planar Expansion-Deflection Nozzles

A Mohan, HD Kim - researchgate.net
ABSTRACT Planar Expansion-Deflection (ED) nozzle is a type of altitude compensating
nozzle, with rectangular cross-section, which employs a pintle placed beyond the throat of a …