Large eddy simulation of a mixing-T experiment

Coste, P.*; Quemere, P.*; Roubin, P.*; Emonot, P.*; Tanaka, Masaaki ; Kamide, Hideki

The WATLON experiment, a water facility about fluid mixing in a T-pipe, is calculated with a finite element volume method and a Large Eddy Simulation (LES) approach, with TRIO-U code. Its unstructured tetrahedron grids do not lead to the same noteworthy disagreements previously mentioned with Cartesian grids. Branch and main pipe inlet velocity fluctuations due to turbulence are simulated with the use of "periodic boxes". These more realistic inlet fluctuations allow physical instabilities to develop, improving the predictions. When an elbow is added upstream of the injection, the influence of the secondary flow on temperature averaged values and fluctuations is underlined.

Language	:	English
Journal	:	Proceedings of 2006 International Congress on Advances in Nuclear Power Plants (ICAPP '06) (CD-ROM)
Volume	:
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Pages	:	p.1626 - 1635
Publication Year/Month	:	2006/06
Meeting title	:	2006 International Congress on Advances in Nuclear Power Plants (ICAPP '06)
Held date	:	2006/06
Location (city)	:	Reno
Location (country)	:	U.S.A.
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DOI for research data	:
Keywords	:	no keyword
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Article of JAEA R&D Review	:
Cooperating Institute	:	CEA

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Registration No. : BB20061031
JAEA Abstracts No. : 34001145
Paper Submission No. : 1311

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