The images above and below show pressure contours around the exposed part of the planing craft at a targeted speed of 48 knots. Usefull results like drag resistance, lift and moments help naval architects improve and optimize their design shapes. Computations have been performed with a fixed trim. More information about these computations are available here.Īir flow a round a planing craft has been modelled using the same methodology as presented and explained above. The image above shows pressure contours around the motor yacht at cruising speed. In particular, streamlines and peak pressure spots help us determine where modifications can be applied to change the flow behaviour over the geometry and increase the comfort of the passengers onboard. Using dedicated post-processing tools we can point to specific areas on the superstructure where modifications may be applied in order to redirect the flow. Various wind configurations similar to offshore conditions were selected. The process leading to better understanding of the flow is composed of successive steps: CAD import and cleaning, grid generation, CFD computations and post-processing of available data. Flow behaviour over the aft decks of the motor yacht was of primary interest. We have modelled the air flow around the superstructure of an 15m motor yacht. Air Flow Around the Superstructure of a Motor Yacht The following are some examples of computations done with OpenFOAM :ġ. Numerical simulations using OpenFOAM for various kinds of ma rine applications (ailing vessels, planing hulls, ships and marine propellers) are under investigation at CFS Engineering. The data exploration can be done interactively in 3D or programmatically using ParaView's batch processing capabilities. ParaView users can quickly build visualizations to analyze their data using qualitative and quantitative techniques. ParaView is an open-source, multi-platform data analysis and visualization application. Another option is to use the OpenFAOM mesh generation utility called snappyHexMesh.įor post-processing the ParaView application is used. ).ĪNSYS ICEMCFD HEXA software is used to generate fully hexahedral structured meshes. ) and libraries (turbulence models, chemical kinetics. ), solvers (incompressible flows, compressible flows, multiphase flow, heat transfer, solid dynamics. Its main features are utilities (pre- and post-processing, tools for mesh converter and mesh generation. OpenFOAM is an open source computational fluid dynamics (CFD) toolbox. Stephane Sanchi participated in a 3-days course 'CFD with OpenFOAM' in Lucerne (11-). Numerical simulations (external aerodynamics, civil engineering, hydrodynamics) using OpenFOAM are currently under investigation at CFS Engineering.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |