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====== Moving meshes for CFD applications ======

Many application for CFD simulations demand for moving meshes.
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Thus, an accurate calculation of transient flow properties is possible.

===== Reciprocating engine =====
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The translational motion of piston and valves is reproduced including
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the closure of the valves for the simulation of the engine gas exchange.

{{wiki:egr_online.gif?&nolink|Residual gas distribution within the moving mesh}}

===== Moving rotors =====
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Charging devices or turbines are characterised by moving rotors.
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CFD simulations have to account for this motion for proper results.
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{{wiki:compressor_online.gif?&nolink|Simplified compressor geometry}}
{{wiki:zahnradpumpe_online.gif?&nolink|Gear pump geometry}}
{{wiki:pws_online.gif?&nolink|Simplified compressor geometry}}