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 |
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| 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 |
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Other
| Other | 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002 |
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| 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
Lee, G. Y., & Yoon, W. S. (2002). Direct prediction of liquid rocket combustion instabilities with emphasis placed on velocity- and pressure-coupled responses. In 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit (38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit).