Tank test (Model test)
and
CFD Calculation

Tank test (Model test)
The most comprehensive assessment of power requirements for a new ship is obtained by conducting experiments with a model hull and propeller in a towing tank. Various tests are performed to evaluate ship resistance, propulsion, maneuvering and seakeeping of all the types of hull forms.
CFD Calculation
Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and data structures to analyze and solve problems that involve fluid flows. Computers are used to perform the calculations required to simulate the free-stream flow of the fluid, and the interaction of the fluid (liquids and gases) with surfaces defined by boundary conditions.