Mathematical and Experimental Studies on Area Enclosed by Hydraulic Jumps Formed Due to Two Unequal Vertical Liquid Jets

When a vertical jet impinges on a horizontal target plate, the flow spreads out uniform in radial direction, it follows azimuthal symmetry. During radial flow of the fluid, a sudden thickening of fluid is been observed which is also called as circular hydraulic jump (CHJ). The thickness of fluid layer inside the jump is comparatively thin in comparison to fluid thickness outside the jump. The thin fluid layer which is been observed inside CHJ represents supercritical flow, whereas the thick fluid layer (outside the jump) represents subcritical flow. The area bounded by the jump is an imperative parameter from heat transfer perspective. The flow field due to two impinging jets is not the same as flow field due to single impinging jet. Depending upon the distance between vertical jets and their strengths, different possibilities of hydraulic jump interaction exist. In this paper, we have derived a mathematical model which predicts area enclosed by jump due to two vertical unequal jets impinging on a horizontal plate. The mathematical model is validated using experimental investigations