Effects of sidewall configurations on rectangular plug nozzle performance

Hidemasa Miyamoto, Akiko Matsuo, Takayuki Kojima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Effects of side wall geometry on performance of rectangular plug nozzle are studied for pre-cooled turbojet engine. Numerical simulation is used to analyze flowfield structures of plug nozzle with various side wall lengths and edge angles for optimal, over-expanding, and under-expanding conditions. For each, thrust efficiency is obtained and compared with full length side wall nozzle in search of the most costly efficient design configuration. When the sidewalls were contracted to half of their original length, the maximum thrust efficiency decrease was 1.8%, and when the walls were removed, 6-10% decrease occurred. On the other hand, difference in sidewall edge angle barely had effect on the flowfield and thrust performance. Effects of external flow on plug nozzle performance was also studied, and the drag at the boat tail region and the sidewall edges caused 7.2% thrust efficiency decrease at optimal expansion compared to the case without external flow.

Original languageEnglish
Title of host publicationCollection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
Pages637-646
Number of pages10
Volume1
Publication statusPublished - 2006
EventAIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference - Sacramento, CA, United States
Duration: 2006 Jul 92006 Jul 12

Other

OtherAIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
CountryUnited States
CitySacramento, CA
Period06/7/906/7/12

Fingerprint

plug nozzles
thrust
Nozzles
configurations
turbojet engines
nozzle walls
Turbojet engines
boats
Boats
drag
Drag
engine
geometry
expansion
Geometry
effect
Computer simulation
simulation

ASJC Scopus subject areas

  • Space and Planetary Science
  • Energy(all)
  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering

Cite this

Miyamoto, H., Matsuo, A., & Kojima, T. (2006). Effects of sidewall configurations on rectangular plug nozzle performance. In Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference (Vol. 1, pp. 637-646)

Effects of sidewall configurations on rectangular plug nozzle performance. / Miyamoto, Hidemasa; Matsuo, Akiko; Kojima, Takayuki.

Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference. Vol. 1 2006. p. 637-646.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Miyamoto, H, Matsuo, A & Kojima, T 2006, Effects of sidewall configurations on rectangular plug nozzle performance. in Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference. vol. 1, pp. 637-646, AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference, Sacramento, CA, United States, 06/7/9.
Miyamoto H, Matsuo A, Kojima T. Effects of sidewall configurations on rectangular plug nozzle performance. In Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference. Vol. 1. 2006. p. 637-646
Miyamoto, Hidemasa ; Matsuo, Akiko ; Kojima, Takayuki. / Effects of sidewall configurations on rectangular plug nozzle performance. Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference. Vol. 1 2006. pp. 637-646
@inproceedings{76d8cec92e844a9f9ef782f58f136269,
title = "Effects of sidewall configurations on rectangular plug nozzle performance",
abstract = "Effects of side wall geometry on performance of rectangular plug nozzle are studied for pre-cooled turbojet engine. Numerical simulation is used to analyze flowfield structures of plug nozzle with various side wall lengths and edge angles for optimal, over-expanding, and under-expanding conditions. For each, thrust efficiency is obtained and compared with full length side wall nozzle in search of the most costly efficient design configuration. When the sidewalls were contracted to half of their original length, the maximum thrust efficiency decrease was 1.8{\%}, and when the walls were removed, 6-10{\%} decrease occurred. On the other hand, difference in sidewall edge angle barely had effect on the flowfield and thrust performance. Effects of external flow on plug nozzle performance was also studied, and the drag at the boat tail region and the sidewall edges caused 7.2{\%} thrust efficiency decrease at optimal expansion compared to the case without external flow.",
author = "Hidemasa Miyamoto and Akiko Matsuo and Takayuki Kojima",
year = "2006",
language = "English",
isbn = "1563478188",
volume = "1",
pages = "637--646",
booktitle = "Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference",

}

TY - GEN

T1 - Effects of sidewall configurations on rectangular plug nozzle performance

AU - Miyamoto, Hidemasa

AU - Matsuo, Akiko

AU - Kojima, Takayuki

PY - 2006

Y1 - 2006

N2 - Effects of side wall geometry on performance of rectangular plug nozzle are studied for pre-cooled turbojet engine. Numerical simulation is used to analyze flowfield structures of plug nozzle with various side wall lengths and edge angles for optimal, over-expanding, and under-expanding conditions. For each, thrust efficiency is obtained and compared with full length side wall nozzle in search of the most costly efficient design configuration. When the sidewalls were contracted to half of their original length, the maximum thrust efficiency decrease was 1.8%, and when the walls were removed, 6-10% decrease occurred. On the other hand, difference in sidewall edge angle barely had effect on the flowfield and thrust performance. Effects of external flow on plug nozzle performance was also studied, and the drag at the boat tail region and the sidewall edges caused 7.2% thrust efficiency decrease at optimal expansion compared to the case without external flow.

AB - Effects of side wall geometry on performance of rectangular plug nozzle are studied for pre-cooled turbojet engine. Numerical simulation is used to analyze flowfield structures of plug nozzle with various side wall lengths and edge angles for optimal, over-expanding, and under-expanding conditions. For each, thrust efficiency is obtained and compared with full length side wall nozzle in search of the most costly efficient design configuration. When the sidewalls were contracted to half of their original length, the maximum thrust efficiency decrease was 1.8%, and when the walls were removed, 6-10% decrease occurred. On the other hand, difference in sidewall edge angle barely had effect on the flowfield and thrust performance. Effects of external flow on plug nozzle performance was also studied, and the drag at the boat tail region and the sidewall edges caused 7.2% thrust efficiency decrease at optimal expansion compared to the case without external flow.

UR - http://www.scopus.com/inward/record.url?scp=34249085567&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34249085567&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:34249085567

SN - 1563478188

SN - 9781563478185

VL - 1

SP - 637

EP - 646

BT - Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference

ER -