Void fraction distributions of inert gas jets across a single cylinder with non-wetting surface in liquid sodium

Kudoh, Hideyuki; Zhao, Dawei; Sugiyama, Ken-ichiro; Narabayashi, Tadashi; Ohshima, Hiroyuki; Kurihara, Akikazu

Void fraction distributions of inert gas jets across a single cylinder with non-wetting surface in liquid sodium

Kudoh, Hideyuki; Zhao, Dawei; Sugiyama, Ken-ichiro et al.

Journal of Nuclear Science and Technology, 2012, 49(12), 1175-1185

Permalink : https://hdl.handle.net/2115/53587

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アクセス権	open access
URI	https://hdl.handle.net/2115/53587
タイトル	Void fraction distributions of inert gas jets across a single cylinder with non-wetting surface in liquid sodium
著者	Kudoh, Hideyuki ; Zhao, Dawei ; Sugiyama, Ken-ichiro ; Narabayashi, Tadashi ; Ohshima, Hiroyuki ; Kurihara, Akikazu
著者名 Kudoh, Hideyuki
著者名 Zhao, Dawei
著者名 Sugiyama, Ken-ichiro
e-Rad_Researcher 10419947 著者名 Narabayashi, Tadashi
著者名 Ohshima, Hiroyuki
著者名 Kurihara, Akikazu
言語	英語
キーワード	wetting
	non-wetting
	two-phase flow
	void fraction
	liquid sodium
	single cylinder
	gas jet
発行日	2012-11-20
出版者	Taylor & Francis
収録物名	Journal of Nuclear Science and Technology
巻(号)	49(12)
ページ	1175-1185
抄録	Little work on the void fraction behaviors along structural materials with poor-wettability for liquid metals has been performed. In the present study, void fraction behaviors around a single cylinder with non-wetting surface condition were quantitatively discussed by using a gas jet-cylinder system where the impinging jet flow, the boundary layer flow, the separation flow, and the wake flow appear. One cylinder with a non-wetting surface and two cylinders with a wetting surface were used to vary the wettability for liquid sodium, and void fraction distributions were measured around the cylinders. In the case of wetting condition, void fraction distributions around the cylinder decrease clearly in the backward region of the cylinder, and liquid-rich region is formed due to bubble separation from the cylinder surface. On the other hand, under non-wetting condition, because of two-phase flow without bubble separation on the cylinder surface, void fraction distributions show almost steady values around the cylinder compared to those with wetting surface. The void behaviors on a non-wetting surface were also confirmed by a visualization experiment conducted in water. The observed differences can be basically attributed to the work of adhesion required for liquid-solid interfacial separation.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is an Author's Accepted Manuscript of an article published in Journal of Nuclear Science and Technology, Volume 49, Issue 12, 2012, pages 1175-1185, ©2012 Atomic Energy Society of Japan, available online at: http://www.tandfonline.com/10.1080/00223131.2012.739019.
PISSN	0022-3131
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1080/00223131.2012.739019