XFlow provides a virtual water channel module for free surface simulations. It can be used to analyze the flow around ship hulls, predict their resistance, seakeeping, loads on components, and the downstream wake of both surface and submerged watercraft.
The adaptive refinement algorithm of XFlow can also detect and refine dynamically and automatically the ship wake and the free-surface of the fluid.
For sailing boats, the multiphase solvers of XFlow allows both hydrodynamic analysis on the boat and aerodynamic analysis on the sail to be performed at the same time.
XFlow can be used to simulate moving parts rigid dynamics behavior, such as boat dynamics with six degrees of freedom, this feature allows the effect of the change of the heave on the roll or yaw angle of the boat or the effect of an increasing inlet flow on the roll angle of the boat to be analyzed dynamically.
XFlow is also well suited to simulate moving parts with enforced behavior such as to carry out boat maneuvers simulations or carrier ships simulations with real rotating propellers or modeled ones.
The solver supports progressive waves boundary conditions by implementing linear and fifth order Stokes theory to simulate a wide range of sea conditions. This is suitable for studying seakeeping of boat hulls, for predicting floating buoy behaviour, or for measuring the impact of the waves on off-shore structures such as oil platforms or bridge pillars. It is also possible to use a porous volume to model the beach and study wave dissipation on the coast.
XFlow multiphase capabilities allow hydrodynamic analysis on the submerged boat region and aerodynamic analysis on the wind exposed region to be performed at the same time. This possibility to simulate both the interaction of the air and water with the boat makes XFlow suitable for sailing applications where both physics are closely related.
Moreover, co-simulations with other structural solvers (through Open FSI and FMI standard) are available in XFlow which even allows inclusion of the sail deformation in this kind of application.
XFlow CFD helping The Ocean Cleanup to save the oceans
XFlow CFD capabilities have been used during 2016 by The Ocean Cleanup (TOC) whose innovative prototype is presenting a new hope to clean up and preserve the oceans....
XFlow Simulations of Sailing Manoeuvers
XFlow simulations of sailing boat manoeuvers with a rigid body dynamics behavior where the boat is free to move under the effect of the aerodynamics and the hydrodynamic forces according to its 6...
XFlow features a virtual water channel module for free surface simulations that, together with XFlow ability to solve problems involving moving parts, allows complex simulations such this ship launch,...
XFlow CFD Validation: Hydrodynamic Resistance Force on SYSSER 50.
The Delft Systematic Yacht Hull Series (DSYHS) has been started in 1973 by professor J. Gerritsma, in cooperation with N. Newman and J. Kerwin of the Massachusetts Institute of Technology (MIT)....
Tanker ship simulation
XFlow simulation of the Kriso tanker ship exposed to sea waves. It experiences sinkage and trim due to the hydrodynamic forces acting on the ship hull.