Flow Behaviors of Impinging Jet in Cold Moderator Vessel for Spallation Neutron Source

Autor:	Hiroshi Sato, Tomokazu Aso, Masanori Kaminaga, Masanori Monde, Ryutaro Hino
Rok vydání:	2003
Předmět:	Physics::Fluid Dynamics Flow visualization Nuclear physics Jet (fluid) Materials science Turbulence Flow (psychology) Spallation Heat transfer coefficient Mechanics Liquid hydrogen Spallation Neutron Source
Zdroj:	Journal of the Visualization Society of Japan. 23:13-16
ISSN:	1884-037X 0916-4731
DOI:	10.3154/jvs.23.supplement2_13
Popis:	A cold moderator using liquid hydrogen is one of the key components in a MW-scale spallation target system, which is cooled down by using a impinging jet flow. Flow visualization experi-ments with a simulated moderator vessel with cylindrical configuration were carried out in order to clarify flow patterns in the cold moderator vessel, which showed jet induced flows such as recirculation flows and stagnant regions. Analytical results of velocity distributions ob-tained with the standard k-s turbulent model agreed well with experimental results obtained under the bight and diameter ratio (h/D) of 2.0. However, analytical turbulent energy and heat transfer coefficients of a bottom of the vessel could not predict experimental values well.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2d2f8e474641be7446e0b8db8bdd6f4a https://doi.org/10.3154/jvs.23.supplement2_13 Zobrazit plný text záznamu