4.8.1 Getting started - WindSim

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2 WindSim ASCREATING THE PARTICLE TRACES ........................................................................................48ANIMATING THE TRACES ......................................................................................................51TEXTURES ..........................................................................................................................52SAVE AND SHARE ...............................................................................................................53PROCEDURE TO SET UP ISO-SURFACES IN GLVIEW PRO .............................. 54GENERATE WIND VISUALISATION FILE ..................................................................................54OPEN 3D VISUALISATION FILE .............................................................................................55SETTING THE ATTRIBUTES ...................................................................................................56CREATING THE ISO-SURFACES .............................................................................................57TEXTURES ..........................................................................................................................58SAVE AND SHARE ...............................................................................................................59
WindSim 4.8.1, evaluation copy3WindSim 4.8.1, evaluation copyIntroductionWindSim is a software dedicated to the design of wind parks. It´s possible to performnumerical simulations of the wind field (speed, direction, turbulence) over a given digitalizedterrain. The best location for the wind turbines is therefore found by coupling the wind fieldresults with long term wind measurements, by usage of statistical means. It´s also possible toestimate the load parameters (e.g. wind shear, turbulence intensity) on the wind turbinesonce performed the computations. Different layouts of wind parks provide different energyproductions but also different loads on the turbines.The described wind park analysis, typical of a micrositing project can be carried out with thesoftware WindSim, which is subdivided in six modules covering the steps to be taken in awind park drawing:• Import digital terrain map. Terrain module;• Calculate flow field over the given terrain. Wind Fields module;• Place wind turbines and measurements stations. Objects module;• Analyse the flow field. Results module;• Combine wind field data with anemometers data by statistical means to provide:o Mean wind maps. Wind Resources module;o Annual Energy Production (AEP) for the chosen layout. Energy module.A typical screen shot of WindSim is shown in Figure 1, the Result module is enabled and a xcomponent of wind speed contour map is visualised.About the technologyWindSim is a software for wind energy assessment, based on Computational Fluid Dynamics(CFD) simulations of the wind flow over given terrains. The CFD simulations are based onthe integration of Reynolds Averaged Navier-Stokes (RANS) equations over a portion of thelower atmosphere, the computational domain. The RANS equations are discretised on acomputational grid and integrated with a finite-volume procedure, two solvers are available: asegregated and a coupled one. Turbulence is taken into account using the standard k-εturbulence model which allows closing the set of equations. WindSim is therefore able toassess wind resources with a higher degree of accuracy than other models solving thelinearized equations. Even terrain with fairly complex features can be processed withWindSim.The evaluation copy of WindSim contains all the features of the commercial version. Theonly restriction that has been put to the evaluation copy is the maximum number of cells
Page 1: 4.8.1Getting started28.05.2008WindS
Page 6 and 7: 4 WindSim ASused to discretise the
Page 8 and 9: 6 WindSim ASFileUnder the File drop
Page 10 and 11: 8 WindSim AS• Export object (*.ow
Page 12 and 13: 10 WindSim ASThe Description page h
Page 14 and 15: 12 WindSim ASProperty informationTh
Page 16 and 17: 14 WindSim ASTerrainThe first step
Page 18 and 19: 16 WindSim ASWhen you click on 3D,
Page 20 and 21: 18 WindSim ASClick on Terrain > Rep
Page 22 and 23: 20 WindSim ASFigure 9. Terrain > Re
Page 24 and 25: 22 WindSim ASdefault the software m
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Page 28 and 29: 26 WindSim ASfarm, in a graphical w
Page 30 and 31: 28 WindSim ASA photo can be pasted
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Page 34 and 35: 32 WindSim ASFigure 18. Results > R
Page 36 and 37: 34 WindSim ASFigure 20. Properties
Page 38 and 39: 36 WindSim ASFigure 22. Wind Resour
Page 40 and 41: 38 WindSim ASFigure 24. Wake defici
Page 42 and 43: 40 WindSim ASFigure 26. Properties
Page 44 and 45: 42 WindSim ASFigure 29. Report pane
Page 46 and 47: 44 WindSim ASProcedure to set up pa
Page 48 and 49: 46 WindSim ASSetting the attributes
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52 WindSim ASTexturesThe final touc
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54 WindSim ASProcedure to set up is
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56 WindSim ASSetting the attributes
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58 WindSim ASTexturesThe final touc
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4.8.1 Getting started - WindSim

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