Basic principles of CFD Definition of numerical domain around geometry of interest (for example thruster unit) Numerical domain is split in large number of small cells -grid or mesh with about 1.000.000 cells o Velocity and pressure are solved in each cell Results of velocity field and pressure distribution are analyzed.This provides among others forces on the thruster: ■Propeller thrust ■Nozzle thrust Resistance of thruster house ©Vartsila WARTSILA© Wärtsilä 12 Basic principles of CFD Definition of numerical domain around geometry of interest (for example thruster unit) Numerical domain is split in large number of small cells -> grid or mesh with about 1.000.000 cells Velocity and pressure are solved in each cell Results of velocity field and pressure distribution are analyzed. This provides among others forces on the thruster: Propeller thrust Nozzle thrust Resistance of thruster house