A numerical study of buoyant plumes in cross-flow conditions

A computational procedure for predicting the buoyant plume above a line fir e in a cross wind is reported. The present model takes into account the int eraction between the plume and the surrounding flow by solving the two-dime nsional equations for the conservation of mass, momentum, and energy. Field s of velocity and temperature are predicted along with plume trajectory and width for different wind speeds. This model can be used to evaluate the im pact of a wildland fire upon vegetation such as crown scorch, burning brand s trajectory, and smoke or ash dispersal.