Boundary Condition Fidelity and Outlet Capacity Effects in a Passive Wind Concentrator: Correcting Idealized Assumptions
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| Format: | Recurso digital |
| Sprache: | Englisch |
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2026
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| _version_ | 1866901758369857536 |
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| author | Prakash Shukla, Deepanker |
| author_facet | Prakash Shukla, Deepanker |
| contents | <p>This work presents a fidelity-driven reassessment of a passive wind concentration<br>concept previously evaluated using idealized Computational Fluid Dynamics (CFD)<br>boundary conditions. Earlier simulations employing prescribed velocity inlets suggested substantial internal velocity amplification. In the present study, the entire geometry is embedded in an external computational domain to allow natural atmospheric<br>interaction.<br>Comparative analysis demonstrates that while idealized boundary conditions overpredict acceleration, meaningful internal velocity can still be achieved under realistic<br>external flow if sufficient outlet capacity is provided. Designs with insufficient downstream area exhibit stagnation and velocity reduction, whereas a constant-width slit<br>configuration restores internal velocity levels closer to the idealized case. The results<br>establish that boundary condition fidelity and outlet flow capacity jointly govern performance in passive wind concentration systems.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18813109 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Boundary Condition Fidelity and Outlet Capacity Effects in a Passive Wind Concentrator: Correcting Idealized Assumptions Prakash Shukla, Deepanker Computational fluid dynamics Ansys Fluent Creo <p>This work presents a fidelity-driven reassessment of a passive wind concentration<br>concept previously evaluated using idealized Computational Fluid Dynamics (CFD)<br>boundary conditions. Earlier simulations employing prescribed velocity inlets suggested substantial internal velocity amplification. In the present study, the entire geometry is embedded in an external computational domain to allow natural atmospheric<br>interaction.<br>Comparative analysis demonstrates that while idealized boundary conditions overpredict acceleration, meaningful internal velocity can still be achieved under realistic<br>external flow if sufficient outlet capacity is provided. Designs with insufficient downstream area exhibit stagnation and velocity reduction, whereas a constant-width slit<br>configuration restores internal velocity levels closer to the idealized case. The results<br>establish that boundary condition fidelity and outlet flow capacity jointly govern performance in passive wind concentration systems.</p> |
| title | Boundary Condition Fidelity and Outlet Capacity Effects in a Passive Wind Concentrator: Correcting Idealized Assumptions |
| topic | Computational fluid dynamics Ansys Fluent Creo |
| url | https://doi.org/10.5281/zenodo.18813109 |