From 2012 Automotive Simulation World Congress:
In fork-lifting truck operations, hydraulic oil may leak from the air breather when simultaneously performing hard braking and quick lowering actions on the truck. To avoid leakage, NACCO routinely uses ANSYS CFD in its hydraulic tank design process. CFD simulations are run for different design concepts to evaluate and compare concepts. The results provide guidelines
and direction for design changes to achieve the goal of zero leakage. This presentation discusses tank sloshing simulations.