Analysis of Nuclear Facilities for Tornado-Induced Flow and Reentrainment

摘要

This report describes an analytical procedure that may be used to calculate tornado-induced flow and material reentrainment within nuclear fuel cycle facilities. The procedure involves the following four steps. (1) A computer code models the overall ventilation pathways and predicts tornado-induced flows and pressures. (2) A second computer code models individual rooms or cells and predicts velocities within the room induced by the flows from step (1). (3) These velocities are then used to predict reentrainment and suspension of particulate materal. (4) The possibility of release is predicted from the flow patterns calculated in (1). For illustrative purposes only, the head-end ventilation system of the Nuclear Fuel Services, West Valley, New York, plant was analyzed using the proposed procedure. (ERA citation 04:025686)