Computational Fluid Dynamics (CFD) analysis are preferred for problems like hull form optimization, ship resistance calculation, ship’s appendage resistance calculation, propulsion parameters study, propeller calculations, flow simulation around the superstructure or flow simulation in ventilation ducts. In Delta Marine CFD analysis are carried out by using DeltaFlow and ANSYS Fluent software applications.

DeltaFlow is an in-house developed software and runs according to Dawson algorithm and solves the potential flow around the ship by considering the free surface effect. DeltaFlow can be used for monohull, catamaran and trimaran forms. Essentially the software is a useful tool for optimization of hull form in terms of wave resistance and determination of the wave resistance level. The additional information taken as a result of the analysis are used also to improve the hull form from the form resistance point of view. The result that can be obtained by using DeltaFlow are cited below,

  Wave deformations around the ship and at free surface level
  Dynamic pressure distribution on the ship
  Wave resistance

ANSYS Fluent software application is able to solve different turbulence models and viscous flow problems. Delta Marine, by using DeltaFlow application, provides solutions to various fluid based engineering problems such as hull form optimization. By this method, variables like ship’s speed, the necessary power to achieve the required speed and the necessary fuel amount to get the needed power can be calculated and optimized in most economic and environment-friendly way. Delta Marine provides to its customer following engineering analysis services within the scope of a ship design project,

  Ship friction, form and wave resistance calculation
  Appendage resistance calculation
  Wake distribution on propeller plane
  Free surface flow and friction resistance
  Underwater and surface flow stream plots
  Calculation of propeller’s kt, kq and cavitation
 Propulsion test and calculation of propulsion parameters (effective wake, thrust deduction, relative rotative efficiency) with propeller
  Effect of the propeller on ship’s hull and noise induced by propeller
  Flow in ventilation ducts and ventilation simulation
  Calculation of hydrodynamic derivatives for maneuvering calculations