Abstract
This paper describes the testing of several spray/wall impaction models developed by the authors and colleagues. A previously unpublished model is described in detail. Most models of spray impaction onto solid surfaces have previously been assessed by comparing the wall spray penetration rates and spray shapes with experimental data. There is a need to establish the ability of models to predict the internal structure of the sprays, because this will influence such parameters as heat transfer and fuel evaporation. Here, therefore, the models are further tested by comparing computer predictions against phase-Doppler anemometry data on spray velocities and drop sizes within the wall spray. The results show that the latest model described here is generally superior to earlier wall impaction submodels in describing these features of the spray. However, the agreement is far from complete, and it is evident that further work is required to enhance the predictive capabilities of the model.
Published Version
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