The results of an experimental investigation of fuel distribution downstream of a plain orifice injector in a transverse air stream are presented. The fuel concentration distribution at the survey plane downstream of the injector was determined with an iso-kinetic sampling technique and the pattern of fuel distribution was described. The empirical expressions for the centreline of a fuel spray (which was defined as the maximum fuel concentration line or penetration distance of the fuel jet) and for the peak value of the fuel concentration were obtained. An empirical method is proposed to predict the liquid fuel concentration distribution in the plane downstream of the injector and the fuel despersion contour line.

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