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dc.contributor.authorFu, Wu-Shungen_US
dc.contributor.authorChao, Wei-Siangen_US
dc.contributor.authorWu, Pei-Jungen_US
dc.contributor.authorLin, Yu-Mingen_US
dc.date.accessioned2017-04-21T06:55:13Z-
dc.date.available2017-04-21T06:55:13Z-
dc.date.issued2016-10en_US
dc.identifier.issn0735-1933en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.icheatmasstransfer.2016.08.002en_US
dc.identifier.urihttp://hdl.handle.net/11536/134212-
dc.description.abstractThis article is dedicated to a new method for improving heat transfer of mixed convection in a vertical channel from the numerical perspective. An adjustable inlet boundary is proposed in the new method to substitute an inlet that is completely occupied by the amount of fluid provided by forced convection included in mixed convection. According to this new method, the flow reversal occurring in the large Richardson number situation can be eliminated significantly, which results in an improvement in the heat transfer rate of mixed convection. In order to investigate a compressible flow problem, this study focuses on four methods, i.e., Roe scheme, preconditioning, dual time stepping, and the LUSGS (Lower Upper Symmetric-Gauss Seidel), to solve the governing equations. Except for the aperture occupied by the mount of fluid provided by forced convection, this study simulates the non-reflecting boundary conditions in other open boundaries. Based on our previous study which has successfully explored a phenomenon of flow reversal, this study intends to enhance the heat transfer rate under this circumstance, and the result has shown a significant improvement, by 29 percentage, comparing with the previous study. Also, a criterion of estimation of the necessity of forced convection included in mixed convection is proposed for enhancing heat transfer rate. Present results and existing results have good agreement. (C) 2016 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectCompressible flowen_US
dc.subjectNon-reflecting boundaryen_US
dc.subjectMixed convectionen_US
dc.titleA new method of adjustment of inlet boundary for improving heat transfer of mixed convection in a vertical channelen_US
dc.identifier.doi10.1016/j.icheatmasstransfer.2016.08.002en_US
dc.identifier.journalINTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFERen_US
dc.citation.volume77en_US
dc.citation.spage165en_US
dc.citation.epage173en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000383824500022en_US
Appears in Collections:Articles