Behavior of the interaction between twin transitional round fountains in a homogeneous fluid, Part 1: Experimental study

This paper is the first part of the study on the behavior of the interaction between twin transitional round fountains with equal power in a homogeneous fluid. In this paper, the interaction behavior is investigated experimentally using a noninvasive P1V technique and flow visualization over the ranges 25 [< or =, slant] Re [< or =, slant] 400 and 1 [< or =, slant] Fr [< or =, slant] 5 at the fixed spacing of D/X sub(0) = 10, where Re and Fr are the Reynolds and Froude numbers, D is the spacing between the two fountain sources, and X sub(0) is the radius of orifices at the fountain source. Dimensional analysis and the experimental results are also used to develop an empirical scaling relation between Z sub(i) which is the time-averaged dimensionless maximum interaction height at full development, and Re and Fr, i.e., Z sub(i)= 0.194Fr super(7/4)Re super(1/4) over the ranges 25 [< or =, slant] Re [< or =, slant] 400 and 1 [< or =, slant] Fr [< or =, slant] 5, at the fixed spacing of D/X sub(0) = 10.