1996-02-01

Experimental Study and Modeling of Diesel Spray/Wall Impingement 960864

An experimental study of diesel spray / wall interaction is conducted in a pressurized bomb using Phase Doppler Anemometer and high speed shadowgraphy. The instantaneous droplet sizes and velocities are measured in the impingement region, without combustion, in the plane located at 3 mm from the wall, for four wall temperatures 20, 200, 300 and 400 °C.
A droplet wall interaction model has been developed and incorporated in the Kiva II code. The model accounts for droplet atomization and heat transfer. The computed spray penetration, the shape contour and the SMD are compared respectively to spray photographs and PDA measurements.

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