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Gerris is computer software in the field of computational fluid dynamics (CFD). Gerris was released as free and open-source software, subject to the requirements of the GNU General Public License (GPL), version 2 or any later. == Scope == ''Gerris'' solves the Navier–Stokes equations in 2 or 3 dimensions, allowing to model industrial fluids (aerodynamics, internal flows, etc.) or for instance, the mechanics of droplets, thanks to an accurate formulation of multiphase flows (including surface tension). Actually, the latter field of study is the reason why the software shares the same name as the insect genus. ''Gerris'' also provides features relevant to geophysical flows: # ocean tide # tsunamis # river flow # eddies in the ocean # sea state (surface waves) Flow types #1 to #3 were studied using the shallow-water solver included in ''Gerris'', case #4 brings in the primitives equations and application #5 relies on the ''spectral'' equations for generation/propagation/dissipation of swell (and/or wind sea): for this purpose ''Gerris'' makes use of the source terms from WaveWatchIII.〔(WaveWatchIII )〕 Lastly, one can note that the (non-hydrostatic) Navier–Stokes solver was also used in the ocean to study: * fluvial plumes * internal waves * hydrothermal convection On the contrary ''Gerris'' does not allow (in its current status) the modeling of compressible fluids (supersonic flows). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gerris (software)」の詳細全文を読む スポンサード リンク
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