Abstract
Aiming at a direct and quantitative prediction of unstable waves evolving in the liquid rocket combustor, a theoretical-numerical analysis is conducted. Instability equations in terms of perturbed flow variables are space-averaged to provide the timeintegrated ODE's in terms of modal amplification factors for pressure- and velocity-coupled unstable waves. Acoustics and combustion responses are fully coupled in the formulation and numerically solved in implicit manner. Effects of magnitude of perturbation, droplet lifetime, combustion region, and pressure-, velocity-coupled responses on the instabilities are discussed.
| Original language | English |
|---|---|
| Title of host publication | 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit |
| Publication status | Published - 2002 Dec 1 |
| Event | 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002 - Indianapolis, IN, United States Duration: 2002 Jul 7 → 2002 Jul 10 |
Publication series
| Name | 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit |
|---|
Other
| Other | 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002 |
|---|---|
| Country | United States |
| City | Indianapolis, IN |
| Period | 02/7/7 → 02/7/10 |
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All Science Journal Classification (ASJC) codes
- Aerospace Engineering
- Control and Systems Engineering
- Electrical and Electronic Engineering
Cite this
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Direct prediction of liquid rocket combustion instabilities with emphasis placed on velocity- and pressure-coupled responses. / Lee, Gil Yong; Yoon, Woong-Sup.
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. 2002. (38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Direct prediction of liquid rocket combustion instabilities with emphasis placed on velocity- and pressure-coupled responses
AU - Lee, Gil Yong
AU - Yoon, Woong-Sup
PY - 2002/12/1
Y1 - 2002/12/1
N2 - Aiming at a direct and quantitative prediction of unstable waves evolving in the liquid rocket combustor, a theoretical-numerical analysis is conducted. Instability equations in terms of perturbed flow variables are space-averaged to provide the timeintegrated ODE's in terms of modal amplification factors for pressure- and velocity-coupled unstable waves. Acoustics and combustion responses are fully coupled in the formulation and numerically solved in implicit manner. Effects of magnitude of perturbation, droplet lifetime, combustion region, and pressure-, velocity-coupled responses on the instabilities are discussed.
AB - Aiming at a direct and quantitative prediction of unstable waves evolving in the liquid rocket combustor, a theoretical-numerical analysis is conducted. Instability equations in terms of perturbed flow variables are space-averaged to provide the timeintegrated ODE's in terms of modal amplification factors for pressure- and velocity-coupled unstable waves. Acoustics and combustion responses are fully coupled in the formulation and numerically solved in implicit manner. Effects of magnitude of perturbation, droplet lifetime, combustion region, and pressure-, velocity-coupled responses on the instabilities are discussed.
UR - http://www.scopus.com/inward/record.url?scp=84896805243&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84896805243&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84896805243
SN - 9781624101151
T3 - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
BT - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
ER -