Water temperature decay under breakup ice jams
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| Title: | Water temperature decay under breakup ice jams |
|---|---|
| Authors: | Beltaos, Spyros1 Spyros.Beltaos@ec.gc.ca, Burrell, Brian C.2 |
| Source: | Cold Regions Science & Technology. Sep2006, Vol. 45 Issue 3, p123-136. 14p. |
| Subjects: | Water temperature, Heat transfer, Nusselt number, Numerical analysis |
| Abstract: | Abstract: The water temperature decay under ice jams that form during the breakup of the river ice cover is evaluated using different data sets from several Canadian rivers. In all cases, the water temperature varies with downstream distance in negative exponential fashion, as indicated by a simplified, one-dimensional, formulation of heat conservation in a river. The corresponding heat transfer coefficients and derivative dimensionless quantities are very high relative to the values that would be expected by extrapolation of existing formulae for turbulent convection in rough pipes. It is suggested that these high heat transfer rates are due to two factors, both characteristic of breakup ice jams: the extreme roughness of the jam underside, and the flow through the voids of the accumulation of ice blocks that comprise the jam. [Copyright &y& Elsevier] |
| Copyright of Cold Regions Science & Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 21918682 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Water temperature decay under breakup ice jams – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Beltaos%2C+Spyros%22">Beltaos, Spyros</searchLink><relatesTo>1</relatesTo><i> Spyros.Beltaos@ec.gc.ca</i><br /><searchLink fieldCode="AR" term="%22Burrell%2C+Brian+C%2E%22">Burrell, Brian C.</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Cold+Regions+Science+%26+Technology%22">Cold Regions Science & Technology</searchLink>. Sep2006, Vol. 45 Issue 3, p123-136. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Water+temperature%22">Water temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+transfer%22">Heat transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Nusselt+number%22">Nusselt number</searchLink><br /><searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The water temperature decay under ice jams that form during the breakup of the river ice cover is evaluated using different data sets from several Canadian rivers. In all cases, the water temperature varies with downstream distance in negative exponential fashion, as indicated by a simplified, one-dimensional, formulation of heat conservation in a river. The corresponding heat transfer coefficients and derivative dimensionless quantities are very high relative to the values that would be expected by extrapolation of existing formulae for turbulent convection in rough pipes. It is suggested that these high heat transfer rates are due to two factors, both characteristic of breakup ice jams: the extreme roughness of the jam underside, and the flow through the voids of the accumulation of ice blocks that comprise the jam. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Cold Regions Science & Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=21918682 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.coldregions.2006.05.006 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 123 Subjects: – SubjectFull: Water temperature Type: general – SubjectFull: Heat transfer Type: general – SubjectFull: Nusselt number Type: general – SubjectFull: Numerical analysis Type: general Titles: – TitleFull: Water temperature decay under breakup ice jams Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Beltaos, Spyros – PersonEntity: Name: NameFull: Burrell, Brian C. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2006 Type: published Y: 2006 Identifiers: – Type: issn-print Value: 0165232X Numbering: – Type: volume Value: 45 – Type: issue Value: 3 Titles: – TitleFull: Cold Regions Science & Technology Type: main |
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