A wind turbine over 100 m high has been simulated at 1 GHz by IEEA with the POGO method. This technique takes second order interactions into account. This is the case of interactions between blades, between each blade and the nacelle and between the nacelle and the tower. A mesh of 1 300 000 triangles was used. The computation took less than 2 minutes of CPU time. This fast simulation makes it possible to study the effect of the rotation of the turbine.
This work has been done by IEEA for the CNES (French space agency). More details available in this paper. The horn has been manufactured by SAP. Measurements at the CNES facility confirm his exceptional performances.
The biggest Icare case ever completed at IEEA is 230 000 unknowns large. The monostatic RCS of a rough surface sample has been computed in less than 2 days. 128 CPUs were used to inverse a 400 Gb large matrix. The best part is that this cluster wasn’t physically at IEEA : it was based on Amazon EC2 instances. For the entire simulation, this on-demand cluster costs less than 100 euros. IEEA can assist the users of the parallel version to run Icare on such clusters. Please contact us for more information.
Last minute update : the new record is now 300 000 unknowns. The same virtual cluster has been used to factorize a 780 Gb matrix in about 40 hours. The overall resolution time was 60 hours.
The Global Ionospheric Scintillation Model (GISM) allows to assess the signal scintillations due to propagation through ionosphere. It can be run on line on IEEA web site, given a user defined scenario. It provides the scintillation indices (intensity and phase) and the major propagation impairments.
End of June will be a buzy time at IEEA with the ANTEM 2012 Synposium followed by EUROEM 2012.
Pierrick Hamel will present its recent work at ANTEM in Toulouse, France, 25-28 June. Its poster is entitled :
Yannick Béniguel will also present the following study :
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