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Report No.

PIV measurement for dual elbow flow using 1/7-scale model of cold-leg piping in a sodium-cooled fast reactor

Ebara, Shinji*; Sato, Tsukasa*; Hashizume, Hidetoshi*; Aizawa, Kosuke ; Yamano, Hidemasa   

To clarify a complex flow in a cold-leg piping of a sodium-cooled fast reactor, flow experiments were conducted by using a 1/7-scale model of the piping with single and dual elbow. Flow fields with intense unsteadiness including flow separation and separation vortices in high Reynolds number region were evaluated by means of PIV measurement. In addition, an effect of multiple elbows was verified by comparing results of the single elbow to those of the dual elbow.



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