What is it about?
The final aim of the work is to study the transverse thermo-acoustic instability by means of a low-order model based on suitable response functions. The flow is considered as one-dimensional within the injector, whereas the combustion chamber flow is modeled by a simplified approach able to preserve the needed multi-dimensional features of wave propagation. The present paper reports on the status of development of both the modeling and the computational approaches. Preliminary results are presented in which numerical verification and validation are shown concerning some well-known gas dynamic problems and the capability to resolve transverse wave-propagation.
Featured Image
Why is it important?
In the complex and harsh world of the numerical simulations of high frequency combustion instability, the development and improvement of low order models, capable of giving a fast and cheap (even if simplified) evaluation of the stability features of a rocket engine, has a central role in the scientific community and could have a significant impact on the industrial scenario.
Perspectives
I think that the development of low order models is exciting and motivating in each field of application, especially when dealing with such complex phenomena like the LREs "screaming". It is something that really gives you insights in what is important and what is not in a certain phenomenon.
Simone D'Alessandro
Universita degli Studi di Roma La Sapienza
Read the Original
This page is a summary of: A Multi-dimensional Approach for Low Order Modeling of Combustion Instability in a Rocket Combustor, July 2018, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2018-4677.
You can read the full text:
Contributors
The following have contributed to this page
