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Cross Flow Resistance in Rod Bundle Cores

Joel Weisman

Nuclear Technology

Volume 15 / Number 3 / September 1972 / Pages 465-469


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Experimental data have shown a high resistance to cross flow in the presence of large axial flows. This phenomenon may be explained by use of a full lateral momentum balance. Application of the momentum balance principle shows that interchannel cross flow at any given level depends on the cross flow at the lower level in addition to the local pressure gradient. This revised procedure for calculation of cross flow should eventually lead to improved estimation of core wide flow redistribution in open lattice cores.

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