Simulation of liquid fuel combustion start-up dynamical behavior
A successful ignition is the consequence of corresponding conditions of fuel mass flow rates, mixture ratio, as well as initiation energy in time and space. If ignition does not take place accurately, serious damages can take place within or outside the engine. The dynamical behavior of the combusti...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X2100188X |
| _version_ | 1818669348948017152 |
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| author | Mukkarum Hussain Iftikhar Ahmed Ilyas Khan Chu Anh My Mirza Mehmood Baig Afrasyab Khan Stanislav S. Makhanov |
| author_facet | Mukkarum Hussain Iftikhar Ahmed Ilyas Khan Chu Anh My Mirza Mehmood Baig Afrasyab Khan Stanislav S. Makhanov |
| author_sort | Mukkarum Hussain |
| collection | DOAJ |
| description | A successful ignition is the consequence of corresponding conditions of fuel mass flow rates, mixture ratio, as well as initiation energy in time and space. If ignition does not take place accurately, serious damages can take place within or outside the engine. The dynamical behavior of the combustion chamber was investigated during ignition. Single shear coaxial injector combustion chamber test case is used in the present study. At the time of propellant injection, mostly the pressure and temperature remain subcritical. When injected these increases promptly and convert into supercritical conditions. The thermodynamic state usually changes from subcritical to supercritical during ignition. Navier Stokes equations along with Soave Redlich Kwong equation model has been applied during steady-state, while transient simulations with ideal gas assumptions are performed to analyze the dynamical behavior of the combustor. All the simulations were performed in the present study using the ANSYS Fluent 16.2 code. The computational findings have strong analytical consistency with the experimental data. Due to inappropriate modeling of the equation of state and limited information about initial and boundary conditions for ignition transient results have some differences with experimental data. The difference between the observed chamber pressure during the experiment and numerical computation using 0.4 RFL value is only 2 bar (approximately 7% difference). |
| first_indexed | 2024-12-17T06:50:48Z |
| format | Article |
| id | doaj.art-7b540ecbdf584cc0856cb43ba4261764 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-12-17T06:50:48Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-7b540ecbdf584cc0856cb43ba42617642022-12-21T21:59:36ZengElsevierCase Studies in Thermal Engineering2214-157X2021-08-0126101025Simulation of liquid fuel combustion start-up dynamical behaviorMukkarum Hussain0Iftikhar Ahmed1Ilyas Khan2Chu Anh My3Mirza Mehmood Baig4Afrasyab Khan5Stanislav S. Makhanov6Institute of Space Technology Pakistan, PakistanSukkur IBA University, PakistanDepartment of Mathematics, College of Science Al-Zulfi, Majmaah University, Al-Majmaah, P.O. Box 66, Majmaah, 11952, Saudi Arabia; Corresponding author.Institute of Simulation Technology Le Quy Don Technical University (LQDTU) 236 Hoang Quoc Viet, Cau Giay, Hanoi, Viet NamNED University of Engineering and Technology, PakistanInstitute of Engineering and Technology, Department of Hydraulics and Hydraulic and Pneumatic Systems, South Ural State University, Lenin Prospect 76, Chelyabinsk, 454080, Russian FederationSchool of Information and Computer Technology, Sirindhorn International Institute of Technology, Thammasat University, Tiwanont Road, T. Bangkadi, A. Muang, Pathum Thani, 12000, ThailandA successful ignition is the consequence of corresponding conditions of fuel mass flow rates, mixture ratio, as well as initiation energy in time and space. If ignition does not take place accurately, serious damages can take place within or outside the engine. The dynamical behavior of the combustion chamber was investigated during ignition. Single shear coaxial injector combustion chamber test case is used in the present study. At the time of propellant injection, mostly the pressure and temperature remain subcritical. When injected these increases promptly and convert into supercritical conditions. The thermodynamic state usually changes from subcritical to supercritical during ignition. Navier Stokes equations along with Soave Redlich Kwong equation model has been applied during steady-state, while transient simulations with ideal gas assumptions are performed to analyze the dynamical behavior of the combustor. All the simulations were performed in the present study using the ANSYS Fluent 16.2 code. The computational findings have strong analytical consistency with the experimental data. Due to inappropriate modeling of the equation of state and limited information about initial and boundary conditions for ignition transient results have some differences with experimental data. The difference between the observed chamber pressure during the experiment and numerical computation using 0.4 RFL value is only 2 bar (approximately 7% difference).http://www.sciencedirect.com/science/article/pii/S2214157X2100188XCFDSupercritical combustionIgnition transientsReal gasKerosene/oxygen combustion |
| spellingShingle | Mukkarum Hussain Iftikhar Ahmed Ilyas Khan Chu Anh My Mirza Mehmood Baig Afrasyab Khan Stanislav S. Makhanov Simulation of liquid fuel combustion start-up dynamical behavior Case Studies in Thermal Engineering CFD Supercritical combustion Ignition transients Real gas Kerosene/oxygen combustion |
| title | Simulation of liquid fuel combustion start-up dynamical behavior |
| title_full | Simulation of liquid fuel combustion start-up dynamical behavior |
| title_fullStr | Simulation of liquid fuel combustion start-up dynamical behavior |
| title_full_unstemmed | Simulation of liquid fuel combustion start-up dynamical behavior |
| title_short | Simulation of liquid fuel combustion start-up dynamical behavior |
| title_sort | simulation of liquid fuel combustion start up dynamical behavior |
| topic | CFD Supercritical combustion Ignition transients Real gas Kerosene/oxygen combustion |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X2100188X |
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