| Heat transfer between elastic solids with randomly rough surfaces. | |
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MedLine Citation:
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PMID: 20084421 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We study the heat transfer between elastic solids with randomly rough surfaces. We include both the heat transfer from the area of real contact, and the heat transfer between the surfaces in the non-contact regions. We apply a recently developed contact mechanics theory, which accounts for the hierarchical nature of the contact between solids with roughness on many different length scales. For elastic contact, at the highest (atomic) resolution the area of real contact typically consists of atomic (nanometer) sized regions, and we discuss the implications of this for the heat transfer. For solids with very smooth surfaces, as is typical in many modern engineering applications, the interfacial separation in the non-contact regions will be very small, and for this case we show the importance of the radiative heat transfer associated with the evanescent electromagnetic waves which exist outside of all bodies. |
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Authors:
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B N J Persson; B Lorenz; A I Volokitin |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-1-20 |
Journal Detail:
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Title: The European physical journal. E, Soft matter Volume: - ISSN: 1292-895X ISO Abbreviation: - Publication Date: 2010 Jan |
Date Detail:
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Created Date: 2010-1-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101126530 Medline TA: Eur Phys J E Soft Matter Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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FZ-J??lich, IFF, 52425, J??lich, Germany, b.persson@fz-juelich.de. |
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