A Hybrid Real/Ideal Gas Mixture Computational Framework to Capture Wave Propagation in Liquid Rocket Combustion Chamber Conditions
The present work focuses on the development of new mathematical and numerical tools to deal with wave propagation problems in a realistic liquid rocket chamber environment. A simplified real fluid equation of state is here derived, starting from the literature. An approximate Riemann solver is then...
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MDPI AG
2021-09-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/8/9/250 |
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doaj-2b5684adb88548f691e3743e537aa7fc2021-09-25T23:33:17ZengMDPI AGAerospace2226-43102021-09-01825025010.3390/aerospace8090250A Hybrid Real/Ideal Gas Mixture Computational Framework to Capture Wave Propagation in Liquid Rocket Combustion Chamber ConditionsSimone D’Alessandro0Marco Pizzarelli1Francesco Nasuti2Department of Mechanical and Aerospace Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, ItalyItalian Space Agency (ASI), Via del Politecnico snc, 00133 Rome, ItalyDepartment of Mechanical and Aerospace Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, ItalyThe present work focuses on the development of new mathematical and numerical tools to deal with wave propagation problems in a realistic liquid rocket chamber environment. A simplified real fluid equation of state is here derived, starting from the literature. An approximate Riemann solver is then specifically derived for the selected conservation laws and primitive variables. Both the new equation of state and the new Riemann solver are embedded into an in-house one-dimensional CFD solver. The verification and validation of the new code against wave propagation problems are then performed, showing good behavior. Although such problems might be of interest for different applications, the present study is specifically oriented to the low order modeling of high-frequency combustion instability in liquid-propellant rocket engines.https://www.mdpi.com/2226-4310/8/9/250low-order modelingreal fluidwave propagationequation of stateRiemann solverliquid rocket engines |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Simone D’Alessandro Marco Pizzarelli Francesco Nasuti |
| spellingShingle |
Simone D’Alessandro Marco Pizzarelli Francesco Nasuti A Hybrid Real/Ideal Gas Mixture Computational Framework to Capture Wave Propagation in Liquid Rocket Combustion Chamber Conditions Aerospace low-order modeling real fluid wave propagation equation of state Riemann solver liquid rocket engines |
| author_facet |
Simone D’Alessandro Marco Pizzarelli Francesco Nasuti |
| author_sort |
Simone D’Alessandro |
| title |
A Hybrid Real/Ideal Gas Mixture Computational Framework to Capture Wave Propagation in Liquid Rocket Combustion Chamber Conditions |
| title_short |
A Hybrid Real/Ideal Gas Mixture Computational Framework to Capture Wave Propagation in Liquid Rocket Combustion Chamber Conditions |
| title_full |
A Hybrid Real/Ideal Gas Mixture Computational Framework to Capture Wave Propagation in Liquid Rocket Combustion Chamber Conditions |
| title_fullStr |
A Hybrid Real/Ideal Gas Mixture Computational Framework to Capture Wave Propagation in Liquid Rocket Combustion Chamber Conditions |
| title_full_unstemmed |
A Hybrid Real/Ideal Gas Mixture Computational Framework to Capture Wave Propagation in Liquid Rocket Combustion Chamber Conditions |
| title_sort |
hybrid real/ideal gas mixture computational framework to capture wave propagation in liquid rocket combustion chamber conditions |
| publisher |
MDPI AG |
| series |
Aerospace |
| issn |
2226-4310 |
| publishDate |
2021-09-01 |
| description |
The present work focuses on the development of new mathematical and numerical tools to deal with wave propagation problems in a realistic liquid rocket chamber environment. A simplified real fluid equation of state is here derived, starting from the literature. An approximate Riemann solver is then specifically derived for the selected conservation laws and primitive variables. Both the new equation of state and the new Riemann solver are embedded into an in-house one-dimensional CFD solver. The verification and validation of the new code against wave propagation problems are then performed, showing good behavior. Although such problems might be of interest for different applications, the present study is specifically oriented to the low order modeling of high-frequency combustion instability in liquid-propellant rocket engines. |
| topic |
low-order modeling real fluid wave propagation equation of state Riemann solver liquid rocket engines |
| url |
https://www.mdpi.com/2226-4310/8/9/250 |
| work_keys_str_mv |
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