Coupled Simulations of Nozzle Flow, Primary Fuel Jet Breakup, and Spray Formation

摘要: Presented are two approaches for coupled simulations of the injector flow with spray formation. In first approach two-fluid model is used within cavitating flow. A primary breakup then applied at nozzle orifice where it standard discrete droplet model. second Eulerian multi-fluid both and regions. The developed model, in approaches, based on locally resolved properties across cross section. provides initial size velocity distribution parcels released from surface a coherent liquid core. major feature predictions obtained remarkable asymmetry spray. This agreement recent observations Chalmers University they performed experiments using transparent scaled-up injector. described has been implemented into AVL FIRE computational fluid dynamics code which was to obtain all presented results. Copyright