Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility
The conventional SIMPLE algorithm for the pressure–velocity coupling has been adopted by many commercial and non-commercial CFD codes. It encounters convergence problem when it is used to solve unsteady natural convection flows with zero-isothermal compressibility. In this paper, a modified version...
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| Format: | Article |
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Pergamon-Elsevier Science Ltd
2017
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| _version_ | 1796861493942157312 |
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| author | Asako, Yutaka Faghri, Mohammad |
| author_facet | Asako, Yutaka Faghri, Mohammad |
| author_sort | Asako, Yutaka |
| collection | ePrints |
| description | The conventional SIMPLE algorithm for the pressure–velocity coupling has been adopted by many commercial and non-commercial CFD codes. It encounters convergence problem when it is used to solve unsteady natural convection flows with zero-isothermal compressibility. In this paper, a modified version of this algorithm is proposed to remedy this drawback. The modification includes updating of the density at each time step based on its value at the previous time step to satisfy the continuity equation. As an example of utilizing the modified SIMPLE algorithm, the unsteady natural convection in a rectangular cavity with isothermal vertical walls and adiabatic horizontal walls was computed. Physically consistent results were obtained. |
| first_indexed | 2024-03-05T19:57:14Z |
| format | Article |
| id | utm.eprints-66141 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:57:14Z |
| publishDate | 2017 |
| publisher | Pergamon-Elsevier Science Ltd |
| record_format | dspace |
| spelling | utm.eprints-661412017-07-11T07:53:40Z http://eprints.utm.my/66141/ Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility Asako, Yutaka Faghri, Mohammad T Technology The conventional SIMPLE algorithm for the pressure–velocity coupling has been adopted by many commercial and non-commercial CFD codes. It encounters convergence problem when it is used to solve unsteady natural convection flows with zero-isothermal compressibility. In this paper, a modified version of this algorithm is proposed to remedy this drawback. The modification includes updating of the density at each time step based on its value at the previous time step to satisfy the continuity equation. As an example of utilizing the modified SIMPLE algorithm, the unsteady natural convection in a rectangular cavity with isothermal vertical walls and adiabatic horizontal walls was computed. Physically consistent results were obtained. Pergamon-Elsevier Science Ltd 2017-01-03 Article PeerReviewed Asako, Yutaka and Faghri, Mohammad (2017) Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility. International Journal of Heat and Mass Transfer, 106 . pp. 177-182. ISSN 0017-9310 http://dx.doi.org/10.1016/j.ijheatmasstransfer.2016.10.052 DOI:10.1016/j.ijheatmasstransfer.2016.10.052 |
| spellingShingle | T Technology Asako, Yutaka Faghri, Mohammad Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility |
| title | Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility |
| title_full | Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility |
| title_fullStr | Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility |
| title_full_unstemmed | Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility |
| title_short | Modification of simple algorithm to handle natural convection flows with zero-isothermal compressibility |
| title_sort | modification of simple algorithm to handle natural convection flows with zero isothermal compressibility |
| topic | T Technology |
| work_keys_str_mv | AT asakoyutaka modificationofsimplealgorithmtohandlenaturalconvectionflowswithzeroisothermalcompressibility AT faghrimohammad modificationofsimplealgorithmtohandlenaturalconvectionflowswithzeroisothermalcompressibility |