The present study focuses on numerical investigation of impinging liquid water jet. The Volume of Fluid (VOF) model is used for multiphase modelling and interface tracking. In order to investigate the gravity effect on impinging jets, top and bottom jet configurations are investigated. These configurations are compared from cooling curves (temperature time history) and transient heat flux parameters. The velocity at impingement is modified from the original jet velocity approximately by 2–33% for top jet configuration for Reynolds number (Re) 8,000–32,000 whereas; for bottom jet, reduction in impingement velocity is nearly 4–75%. The top jet with greater velocity induced due to gravitational effect spreads over a greater radial position than the bottom jet configuration. Further bottom jet configuration shows a greater extent of high temperature zone which indicates reduced cooling than the top jet configuration. For top and bottom jets, cooling rate at X/d = 0 is 30.21 °C/s and 21.71 °C/s for Re = 8,000; 30.63 °C/s and 30.39 °C/s for Re = 16,000; 31.21 °C/s and 31.17 °C/s for Re = 32,000. The maximum difference in cooling rate between the top and bottom jet is 49%, 3.89% and 1.55% at Re = 8,000; Re = 16,000 and Re = 32,000.