ContribDieselFoamSprayPropertiesInjectorModel

Back

injectorModel

Options:

• blobSwirlInjector
• ChomiakInjector
• constanInjector
• definedHollowConeInjector
• definedPressureSwirlInjector
• hollowConeInjector
• pressureSwirlInjector

---

• blobSwirlInjector

Z. Han, S. Parrish, P.V. Farrell, R.D. Reitz

"Modeling Atomization Processes Of Pressure Swirl Hollow-Cone Fuel Sprays"

Atomization and Sprays, vol. 7, pp. 663-684, 1997

and

L. Allocca, G. Bella, A. De Vita, L. Di Angelo

"Experimental Validation of a GDI Spray Model"

SAE Technical Paper Series, 2002-01-1137

• ChomiakInjector

The angle a parcel will be injected is a function of droplet size.

$\alpha = \frac{d-d_{max}}{d_{min}-d_{max}} \alpha_{max}$

The large drops go straight, whereas the smaller drops form the spray angle.

• constantInjector

The initial dropsize is constant over time and defined by the droplet-nozzle diameter ratio.

Spray cone angle is also constant over time.

Works with multiple injectors.

• definedHollowConeInjector

Initial drop size is defined by the dropletPDF and inner/outer cone angles are functions of time.

Only works with 1 injector.

• definedPressureSwirlInjector

• hollowConeInjector

Initial drop size is defined by the dropletPDF.

Inner and outer cone angles are constant in time.

• pressureSwirlInjector

injection min/max angle is constant in time and

equal to coneAngle + 2*(coneInterval * ( 0.5 - rnd(0,1) )

maxKv is the maximum discharge coefficient