Studies of the Ball Valve for use of Power Sprayer

Theoretical Analysis by Conformal Projection Method

Abstract

(1) The writer was done theoretical analysis by conformal projection method on the potential flow of agricultural chemicals throngh the ball valve for use of power sprayer. To solve this problem let us assume the motion to be two dimensional of course and neglect influence due to the friction and the compressibility of the fluid.
(2) The first, to solve this problem the writer used the Swarz-christoffel's integral method, as so case of poppet valve or a plane seated valve. But it could not solved.
(3) And so, the secand, by the hodograph method writer obtained the equation of Jet, as so the case of motion of hydraulics or orifice.
(4) Let us insert numerical values to this equation, and studies the flow characteristics, and relation between lift of velocity, angle and contraction coefficient. This result is followed the relation between velocity or lift is proportionally, and angle changes about 0°-50° and contraction coefficient valve is 0.55-0.66 and with the increase of the lift, μ is decreases.
(6) But this paper is theoretical analysis to solved under some assume, on the power sprayer that motion is difference and so need to cheek it by the experimental research.