Numerical simulation of water flow around rotated car tire is one of the challenging problems for computational fluid dynamics (CFD).

Main difficulties of the problem are :
- the presence of three phases - liquid, gas, rigid body - in computation domain;
- the tire motion relatively the computation domain;
- complex tire shape and large ratio between scales of tire diameter (500-1000 mm) and tread channels (2-10 mm);
- variation of tread surface under loading;
- motion of free water surface with possible water wave breaking down.

The adequate numerical method allowing to overcome all these difficulties is need to solve the problem. The main question is the choice of a grid type. The commonly used grids may be classified under non-structured grids (NSG), structured curvilinear grids (SCG) and Cartesian structured locally refined grids.

Download: A. Aksenov, A. Dyadkin, A. Gudzovsky: Numerical Simulation of Car Tire Aquaplaning, 1996 year, PDF, 270 KB