Mass transfer in submerged impinging oblique jet

This these includes the study of mass transfer in which a submerged impinging jet positioned at different angles to a target surface in the cell. The flow and mass transfer studies using submerged impinging jets depend on target surface geometry, the angle between the nozzle and the target surface, turbulent flow intensity, the geometry of jet flow, the velocity profile at the exit of nozul. Experiments was carried out Reynolds number intervals between 5000 and 40000, in the range of (H/d) between 2 and 6, in the range of the angles 60o-90o and at the Sc number of 1692. Local mass transfer coefficients on the target surface were determined using the electrochemical limiting diffusion current technique (ELDCT). When it is 90o the angle of impact in the first case, the jet impact on the surface mass transfer measurements performed in the vicinity of the stagnation point of a maximum is determined to give. Local mass transfer coefficients decreased with the increase in radial distance. It was observed that the increase in the Re numbers increased the local mass transfer values. The distance between the nozzle and the impact surface is increased from 2 to 6, over the entire surface mass transfer coefficient decreased. Impact surface of the nozzle axis with the plane of 60o, 70o and 80o he are located as in cases where the impact on the surface mass transfer measurements were carried out. According to these measurements, the maximum mass transfer position on the surface was moved from the geometric stagnation point where the value of (r/D) is equal to zero to the radial direction. Local and average mass transfer coefficients by using local Sh numbers were calculated. The average sh numbers were calculated by integration of the local values. The average sh numbers, the number of jet Re nozzle-to-surface distance and the angle of impact has been correlated as a function of the following equation has been obtained: Sh=0,033(〖Re〗^0,78 )((H/d))^(-0,50)(θ^0,51 )(〖Sc〗^0,33 ) A comparison of the results of the present study the results obtained from the literature, it was observed that a good fit between them at the end. As a result, is positioned at an angle perpendicular to the surface submerged, and the jet stream around the jet stagnation of the notes in the case of high mass transfer coefficients were obtained. But in cases where the impinging angle is different from the distribution of mass transfer coefficients of 90o with respect to (r/D)=0 is not symmetric, and the maximum mass transfer obtained in an area away from this point.