Computation of Spray Dynamics by Direct Solution of Moment Transport Equations-Inclusion of Nonlinear Momentum Exchange.

摘要

Using conventional particle tracking techniques to predict the dynamics of spray flows can be prohibitively expensive, requiring large computation times and significant data storage. Moreover, because of the discontinuous nature of the spray drops, data from a simulation of the flow does not produce smooth statistics unless the results from many simulations have been averaged. Recently, a new model was developed that computes spray statistics directly, without simulating the flow. In this paper, the model is extended to include the effects of nonlinear momentum exchange between the phases. The approach was tested on a quasi-one-dimensional flow geometry. The results are compared with a Lagrangian simulation and demonstrate good agreement.