Numerical simulation of water spray caused by a rolling airplane tire

The meshless method of smooth particle hydrodynamics (SPH) is used to simulate the water spray caused by a rolling airplane tire, which is a complex physical problem. Graphics of the spray at a certain tire speed are given to describe the whole process in detail. Flow field at different tire speeds demonstrate that as the tire speed increases, splashes as well as the scroll effect of the rolling movement become more pronounced. Furthermore, the angles between the runway and main jet flow fields at both sides increases. Results are also presented on splashes through different depths of the water film. The quantity of water over the tire decreases as the thickness of the water film increases. In this paper, for the first time in literature, detailed results of the whole water spray process are given and the effect of tire speed and pool depth on water spray is quantified.