FlowVision CFD software is used in various sectors for many different applications.

Experiments fulfiled in CETIM have shown that tonal blade-passing-frequency (BPF) noise becomes predominant for lawn-mowers with a big rotor diameter. 2-D and 3-D CFD unsteady computations give a clear picture of pseudo-sound perturbation inside the casing of lawn-mower. Method of representation of unsteady motion of compressible fluid with subsonic flow as a sum of vortex mode (pseudo-sound) and acoustical mode (airborne sound) is used to define the sound near field.Numerical and Experimental Study of 3D Unsteady Flo

The description of the variable pitch propeller (VPP) is presented. An insight into this propeller operation is given. It's advantages which give the improvement of propulsion of different purpose ship in comparison with the traditional propeller are noted. To be said in the report it is confirmed by example.

Improvement of High Speed Craft Propuls

During operation of vertical cylindrical tanks for storage of oil and oil products significant quantities of compacted sediments can be formed and accumulated. As a result, tank useful capacity, tank farm turnover are reduced, oil storage cost is increased due to the
necessity to put tanks out of operation and perform their cleaning.

FEATURES OF FLOW

Feeder is one of the airships of the Multibody Advanced Airship for Transport (MAAT) system, under development within the EU FP7 project. MAAT is based on a modular concept composed of two different parts that have the possibility to join; respectively they are the so-called Cruiser and Feeder, designed on the lighter than air principle.

Experimental and Numerical Study of the Effec

In order to supply tools for low noise design to the manufacturers of lawnmowers CETIM has set up a research project on blade noise (which is predominant on medium size and big machines). Experimental studies are based on the use of a special test rig which allows to measure blade noise without disturbances from the drive unit and to determine simultaneously the pressure fluctuations generated by the blade.

 

Experimental and Computational Study o

 

The paper presents a numerical simulation of the drop test in a still water for the multi-component box structure. The complexity of the problem is in the strong fluid-structure interaction (FSI) between the box and the water free surface. The numerical simulation of the drop test is performed with two software tools: Abaqus and FlowVision through the direct coupling interface, which manipulates, on the Abaqus side the Lagrangian finite-element mesh and on the FlowVision side the Eulerian finite-volume mesh with subgrid geometry resolution.

Drop Test FSI Simulation with Abaqus and Flo

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The brief for the boat, v-39 Albatross is to set a new world outright sailing speed record at Portland Harbor, UK by 2013. The boat is configured to add at least 10 knots to the current record by setting a speed above 65 knots (120 km/h). At speed the boat hulls will fly above the surface using a wing in ground effect. The pilot is able to sail on both port and starboard tack and can actively control the craft in speed, roll and height as well as direction.

Coupled CFD and Structural An

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