Abstract
The present investigation describes the characteristics of the fuel spray and the interaction with a cross-flow. Under the normal temperature and pressure, the fuel is injected by a VCO injector into an optically accessible rectangular wind tunnel; the direction of the injection is perpendicular to the direction of the cross-flow. The velocity of the cross flow is 9.2m/s while the injection pressures are 5 and 10 MPa. By using the high speed video camera and the PIV system, the spray profile, the penetration distance and velocity distribution are measured. The high vertical and horizontal penetration distance are obtained with the high injection pressure in the cross-flow. Along the direction of cross flow, the horizontal component of the droplet velocity is even higher than the velocity of cross flow in the spray tip region.
