Vr represents the reference velocity description associated with the k factor. The value C needed by the code is also given. The net effect of the inertial loss coefficients is given in the last row of Table A-2. Table A-2 . These values apply in the vertical direction.
Lateral resistance is infinite due to the solid rack walls.
The lateral resistance values used in the model are set two orders of magnitude higher than the vertical coefficients defined above. This increased resistance and the several vertical walls used in the CFD model align the flow in the vertical direction. A plot of pressure loss through an 8x8 GE bundle is obtained for a quick comparison with the results obtained above. The GE data represent a single-phase pressure drop through a BWR bundle as a function of flow rate. It is unclear if the GE results are measured or computed.