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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Berg, E. V. Edelbauer, W. Tatschl, R. Volmajer, M. Kegl, B. Alajbegovic, A. Ganippa, L. |
| Copyright Year | 2003 |
| Abstract | A coupled simulation methodology for cavitating nozzle flow and spray formation has been developed at AVL and applied within the framework of the FIRE CFD code. In this approach a two-fluid model for cavitating nozzle flow inside the injector and a primary break-up model applied at the nozzle orifice are combined with the standard Discrete Droplet Model (DDM). Using an alternative calculation method presently also an approach with an Eulerian multi-fluid model applied for the nozzle and spray regions together is developed. A two-fluid model is used to simulate injector flows. The primary break-up model developed is based on locally resolved properties of the cavitating nozzle flow in the orifice cross section. The model delivers the initial droplet size and velocity distribution with droplet parcels released from the surface of a coherent liquid core. The characteristic feature of the results from the model is a remarkable asymmetry of the spray. Recent experimental findings from Chalmers University gained from a transparent model injector are used for model validation. |
| Sponsorship | Internal Combustion Engine Division |
| Starting Page | 171 |
| Ending Page | 180 |
| Page Count | 10 |
| File Format | |
| ISBN | 0791836789 |
| DOI | 10.1115/ICES2003-0643 |
| e-ISBN | 079183669X |
| Volume Number | Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components |
| Conference Proceedings | ASME 2003 Internal Combustion Engine Division Spring Technical Conference |
| Language | English |
| Publisher Date | 2003-05-11 |
| Publisher Place | Salzburg, Austria |
| Access Restriction | Subscribed |
| Subject Keyword | Turbulence Primary break-up Mixture formation Cavitation Two-fluid model Computational methods Transparency Computational fluid dynamics Sprays Fuels Flow (dynamics) Fluids Simulation Model validation Drops Ejectors Fire Nozzles |
| Content Type | Text |
| Resource Type | Article |
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