In-Cylinder Aero-Thermal Simulation of Compression Ignition Engine: Using a Layering Meshing Approach
Three-dimensional flow simulations of the full cycle for four-valve direct-injection Diesel engine have been carried out with different meshes. The aim of the present study is to establish an extensive CFD investigation of in-cylinder aero-thermal flow of a direct-injection Diesel engine. The ICE-CF...
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2019-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=49923&issue_ID=1002 |
| _version_ | 1811280463446147072 |
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| author | O. Moussa A. Ketata D. Zied P. Coelho |
| author_facet | O. Moussa A. Ketata D. Zied P. Coelho |
| author_sort | O. Moussa |
| collection | DOAJ |
| description | Three-dimensional flow simulations of the full cycle for four-valve direct-injection Diesel engine have been carried out with different meshes. The aim of the present study is to establish an extensive CFD investigation of in-cylinder aero-thermal flow of a direct-injection Diesel engine. The ICE-CFD solver is used to examine the unsteady behavior of a realistic engine configuration. Moreover, a layering approach and dynamic mesh model are adopted to generate the grid. The predicted radial velocity and swirl ratio for four different meshes are compared with Laser Doppler Velocimetry measurements and with numerical results from the literature. The comparison shows that the obtained results with the fine mesh present a good agreement with the experimental measurements along the compression phase and at the start of the expansion phase. In addition, these results are more accurate than the predicted results reported in the literature. Furthermore, CFD analysis is presented for the whole cylinder volume with regard to several parameters such as velocity field, swirling, tumble flow, pressure and temperature distributions. These results prove that in-cylinder CFD simulation gives reasonably accurate results that enable enhanced knowledge of the aero-thermal flow of full engine cycle. |
| first_indexed | 2024-04-13T01:15:10Z |
| format | Article |
| id | doaj.art-2736e219d8a242bebb1f9df4da0f2bdd |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-04-13T01:15:10Z |
| publishDate | 2019-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-2736e219d8a242bebb1f9df4da0f2bdd2022-12-22T03:08:57ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722019-01-0112516511665.In-Cylinder Aero-Thermal Simulation of Compression Ignition Engine: Using a Layering Meshing ApproachO. Moussa0A. Ketata1D. Zied2P. Coelho3Laboratory of Electro-Mechanic Systems, National Engineering School of Sfax, University of Sfax, P.O. Box 1173, Road Soukra, 3038 Sfax, TunisiaLaboratory of Electro-Mechanic Systems, National Engineering School of Sfax, University of Sfax, P.Laboratory of Electro-Mechanic Systems, National Engineering School of Sfax, University of Sfax, P.Higher Technical Institute of Lisbon, DEM, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, PortugalThree-dimensional flow simulations of the full cycle for four-valve direct-injection Diesel engine have been carried out with different meshes. The aim of the present study is to establish an extensive CFD investigation of in-cylinder aero-thermal flow of a direct-injection Diesel engine. The ICE-CFD solver is used to examine the unsteady behavior of a realistic engine configuration. Moreover, a layering approach and dynamic mesh model are adopted to generate the grid. The predicted radial velocity and swirl ratio for four different meshes are compared with Laser Doppler Velocimetry measurements and with numerical results from the literature. The comparison shows that the obtained results with the fine mesh present a good agreement with the experimental measurements along the compression phase and at the start of the expansion phase. In addition, these results are more accurate than the predicted results reported in the literature. Furthermore, CFD analysis is presented for the whole cylinder volume with regard to several parameters such as velocity field, swirling, tumble flow, pressure and temperature distributions. These results prove that in-cylinder CFD simulation gives reasonably accurate results that enable enhanced knowledge of the aero-thermal flow of full engine cycle.http://jafmonline.net/JournalArchive/download?file_ID=49923&issue_ID=1002Compression ignition engine; Aero-thermal flow; Dynamic mesh; CFD simulation; Meshing effect. |
| spellingShingle | O. Moussa A. Ketata D. Zied P. Coelho In-Cylinder Aero-Thermal Simulation of Compression Ignition Engine: Using a Layering Meshing Approach Journal of Applied Fluid Mechanics Compression ignition engine; Aero-thermal flow; Dynamic mesh; CFD simulation; Meshing effect. |
| title | In-Cylinder Aero-Thermal Simulation of Compression Ignition Engine: Using a Layering Meshing Approach |
| title_full | In-Cylinder Aero-Thermal Simulation of Compression Ignition Engine: Using a Layering Meshing Approach |
| title_fullStr | In-Cylinder Aero-Thermal Simulation of Compression Ignition Engine: Using a Layering Meshing Approach |
| title_full_unstemmed | In-Cylinder Aero-Thermal Simulation of Compression Ignition Engine: Using a Layering Meshing Approach |
| title_short | In-Cylinder Aero-Thermal Simulation of Compression Ignition Engine: Using a Layering Meshing Approach |
| title_sort | in cylinder aero thermal simulation of compression ignition engine using a layering meshing approach |
| topic | Compression ignition engine; Aero-thermal flow; Dynamic mesh; CFD simulation; Meshing effect. |
| url | http://jafmonline.net/JournalArchive/download?file_ID=49923&issue_ID=1002 |
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