Design and numerical analysis of bicycle driver compartment area through CFD simulation
Upright-seat bicycles exhibit poor aerodynamics, with both rider and bicycle generating significant drag intensified by wind resistance, cold air, and rainfall. This research's aim involves designing and evaluating a bicycle compartment through CFD simulation. Beginning with a standard upright...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024016049 |
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| author | Boru Godana Golo Degefa Legesse Bekele Garbe Chukulu Jarso Dr. Ing. Getachew Shunki Tibba |
| author_facet | Boru Godana Golo Degefa Legesse Bekele Garbe Chukulu Jarso Dr. Ing. Getachew Shunki Tibba |
| author_sort | Boru Godana Golo |
| collection | DOAJ |
| description | Upright-seat bicycles exhibit poor aerodynamics, with both rider and bicycle generating significant drag intensified by wind resistance, cold air, and rainfall. This research's aim involves designing and evaluating a bicycle compartment through CFD simulation. Beginning with a standard upright mountain bike model, six conceptual models serve to assess drag, lift, and streamline efficiency. Model 0 (original) provides baseline aerodynamics, indicating a drag coefficient of 0.52, closely aligning with the experimentally measured 0.5. Modifications initiate with Model 1, where rounded frontal corners decrease lift and drag. Model 3 achieves further drag reduction to 0.437 by increasing the rounding radius. Model 4 includes a 350 mm vertical vortex splitter, resulting in a drag coefficient of 0.425. Model 5 integrates horizontal and vertical splitters with chamfering and slanting, while Model 6 adds a rear teardrop angle, enhancing streamlining and reducing recirculation, yielding a drag coefficient of 0.295. Experimental validation in a wind tunnel records a drag coefficient of 0.311, reflecting a 5.42% error due to wind tunnel limitations. Model 6 emerges as the most aerodynamically efficient design. |
| format | Article |
| id | doaj-art-5cb579a2dc8d41d388372cb643a81eab |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-5cb579a2dc8d41d388372cb643a81eab2025-08-20T02:34:43ZengElsevierResults in Engineering2590-12302024-12-012410335110.1016/j.rineng.2024.103351Design and numerical analysis of bicycle driver compartment area through CFD simulationBoru Godana Golo0Degefa Legesse Bekele1Garbe Chukulu Jarso2Dr. Ing. Getachew Shunki Tibba3Department of Mechanical Engineering, Borana zone water and Energy, Yabelo, Ethiopia; Corresponding authors.Department of Mechanical Engineering, Bule Hora University, Bule Hora, EthiopiaDeparment of Mechanical Engineering, Wolkite University, Wolkite, Ethiopia; Corresponding authors.Departmet of Mechanical Engineering, Addis Ababa Science and Technology University, Addis Ababa, EthiopiaUpright-seat bicycles exhibit poor aerodynamics, with both rider and bicycle generating significant drag intensified by wind resistance, cold air, and rainfall. This research's aim involves designing and evaluating a bicycle compartment through CFD simulation. Beginning with a standard upright mountain bike model, six conceptual models serve to assess drag, lift, and streamline efficiency. Model 0 (original) provides baseline aerodynamics, indicating a drag coefficient of 0.52, closely aligning with the experimentally measured 0.5. Modifications initiate with Model 1, where rounded frontal corners decrease lift and drag. Model 3 achieves further drag reduction to 0.437 by increasing the rounding radius. Model 4 includes a 350 mm vertical vortex splitter, resulting in a drag coefficient of 0.425. Model 5 integrates horizontal and vertical splitters with chamfering and slanting, while Model 6 adds a rear teardrop angle, enhancing streamlining and reducing recirculation, yielding a drag coefficient of 0.295. Experimental validation in a wind tunnel records a drag coefficient of 0.311, reflecting a 5.42% error due to wind tunnel limitations. Model 6 emerges as the most aerodynamically efficient design.http://www.sciencedirect.com/science/article/pii/S2590123024016049AerodynamicsCompartmentDrag and lift coefficientFlow streamVortex splitter |
| spellingShingle | Boru Godana Golo Degefa Legesse Bekele Garbe Chukulu Jarso Dr. Ing. Getachew Shunki Tibba Design and numerical analysis of bicycle driver compartment area through CFD simulation Results in Engineering Aerodynamics Compartment Drag and lift coefficient Flow stream Vortex splitter |
| title | Design and numerical analysis of bicycle driver compartment area through CFD simulation |
| title_full | Design and numerical analysis of bicycle driver compartment area through CFD simulation |
| title_fullStr | Design and numerical analysis of bicycle driver compartment area through CFD simulation |
| title_full_unstemmed | Design and numerical analysis of bicycle driver compartment area through CFD simulation |
| title_short | Design and numerical analysis of bicycle driver compartment area through CFD simulation |
| title_sort | design and numerical analysis of bicycle driver compartment area through cfd simulation |
| topic | Aerodynamics Compartment Drag and lift coefficient Flow stream Vortex splitter |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024016049 |
| work_keys_str_mv | AT borugodanagolo designandnumericalanalysisofbicycledrivercompartmentareathroughcfdsimulation AT degefalegessebekele designandnumericalanalysisofbicycledrivercompartmentareathroughcfdsimulation AT garbechukulujarso designandnumericalanalysisofbicycledrivercompartmentareathroughcfdsimulation AT dringgetachewshunkitibba designandnumericalanalysisofbicycledrivercompartmentareathroughcfdsimulation |