Altair CFD’s smooth particle hydrodynamics (SPH) solver realistically simulates oil flow within various drivetrain components in automotive, aerospace and heavy industries (e.g. manual or automatic gearboxes, differentials, auxiliary aerospace gearboxes etc.). The SPH solver allows for fast design iterations and explorations, reducing the need for excessive physical tests and driving the development process cost down. It enables engineers to optimize efficiency by reducing churning losses, ensuring sufficient oil flow to critical areas and improving reliability while reducing the total oil amount.