Spectral analysis on heat transfer between liquid and structured surface based on molecular dynamics

Fujiwara, Kunio; Nakata, Shogo; Shibahara, Masahiko

doi:https://doi.org/10.1615/ICHMT.2021.CHT-21.90

Spectral analysis on heat transfer between liquid and structured surface based on molecular dynamics

Fujiwara, Kunio; Nakata, Shogo; Shibahara, Masahiko

Proceedings of CHT-21 ICHMT International Symposium on Advances in Computational Heat Transfer, 2021, 119-125

アクセス数:422件（2025-07-26 17:09 集計）

固定URL: https://hdl.handle.net/11094/93593

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タイトル	Spectral analysis on heat transfer between liquid and structured surface based on molecular dynamics
著者	NRID 1000060800852 1000060800852 ORCID 0000-0002-4098-2606 0000-0002-4098-2606 researchmap permalink k_fujiwara k_fujiwara Scopus Author ID 55580958700 55580958700 著者名 Fujiwara, Kunio
	著者名 Nakata, Shogo
	NRID 1000040294045 1000040294045 researchmap permalink read0051684 read0051684 Scopus Author ID 7005167142 7005167142 ORCID 0000-0002-9846-3569 0000-0002-9846-3569 著者名 Shibahara, Masahiko
内容	Fujiwara Kunio, Nakata Shogo, Shibahara Masahiko.. Spectral analysis on heat transfer between liquid and structured surface based on molecular dynamics. Proceedings of CHT-21 ICHMT International Symposium on Advances in Computational Heat Transfer 119, (2021); https://doi.org/10.1615/ICHMT.2021.CHT-21.90.
抄録	Heat transfer across solid-liquid interfaces at the nanometer scale is the important phenomenon in thermal science and engineering. This study examined effects of structures at the atomic scale on heat transfer mechanisms at a solid-liquid interface, using molecular dynamics simulations. As the structures, we adopted the attached atoms: adsorbed or clustered atoms on a flat solid surface, and the thermal transport and interfacial thermal resistance were investigated in detail. The results revealed the enhancement of the thermal transport is remarkable, that is, the thermal resistance is low, for the surface with the adsorbed atoms. The simulations also investigated the thermal transport mechanism from a spectral point of view focusing on the heat flux across the solid-liquid interface. The relationship between the thermal transport and the spectral heat flux was discussed, and the results showed that the thermal transport with the low frequencies is dominant in the case of the surface with the adsorbed atoms.
会議情報	会議名 International Symposium on ADVANCES IN COMPUTATIONAL HEAT TRANSFER – CHT-21 回次 8 開催期間 August 15th to August 19th, 2021 開催地 Rio de Janeiro, full online 開催国
出版者	Begell House
収録物名	Proceedings of CHT-21 ICHMT International Symposium on Advances in Computational Heat Transfer
ページ	119-125
刊行年月	2021-08-15
言語	英語
ハンドルURL	https://hdl.handle.net/11094/93593
eISSN	25785486
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1615/ICHMT.2021.CHT-21.90
アクセス権	open access
出版タイプ	Accepted Manuscript
カテゴリ	会議発表論文 Conference Paper

資源タイプ	会議発表論文
ローカル資源タイプ	会議発表論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Proceedings of CHT-21 ICHMT International Symposium on Advances in Computational Heat Transfer. 2021, p. 119-125
DC.title	Spectral analysis on heat transfer between liquid and structured surface based on molecular dynamics
DC.creator	Fujiwara, Kunio
	Nakata, Shogo
	Shibahara, Masahiko
DC.publisher	Begell House
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2021-08-15
DC.identifier	https://doi.org/10.1615/ICHMT.2021.CHT-21.90
DC.description	Fujiwara Kunio, Nakata Shogo, Shibahara Masahiko.. Spectral analysis on heat transfer between liquid and structured surface based on molecular dynamics. Proceedings of CHT-21 ICHMT International Symposium on Advances in Computational Heat Transfer 119, (2021); https://doi.org/10.1615/ICHMT.2021.CHT-21.90.
DCTERMS.abstract	Heat transfer across solid-liquid interfaces at the nanometer scale is the important phenomenon in thermal science and engineering. This study examined effects of structures at the atomic scale on heat transfer mechanisms at a solid-liquid interface, using molecular dynamics simulations. As the structures, we adopted the attached atoms: adsorbed or clustered atoms on a flat solid surface, and the thermal transport and interfacial thermal resistance were investigated in detail. The results revealed the enhancement of the thermal transport is remarkable, that is, the thermal resistance is low, for the surface with the adsorbed atoms. The simulations also investigated the thermal transport mechanism from a spectral point of view focusing on the heat flux across the solid-liquid interface. The relationship between the thermal transport and the spectral heat flux was discussed, and the results showed that the thermal transport with the low frequencies is dominant in the case of the surface with the adsorbed atoms.
DC.format	93593
citation_title	Spectral analysis on heat transfer between liquid and structured surface based on molecular dynamics
citation_author	Fujiwara, Kunio
	Nakata, Shogo
	Shibahara, Masahiko
citation_publisher	Begell House
citation_language	英語
citation_date	2021-08-15
citation_journal_title	Proceedings of CHT-21 ICHMT International Symposium on Advances in Computational Heat Transfer
citation_firstpage	119
citation_lastpage	125
citation_doi	https://doi.org/10.1615/ICHMT.2021.CHT-21.90
citation_public_url	https://hdl.handle.net/11094/93593

Spectral analysis on heat transfer between liquid and structured surface based on molecular dynamics

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