AVL BOST 3D Modeler The new AVL BOOST enables highly accurate 3D Modeling. 3 0 F o c u s common gas exchange components, e. g. air cleaners. The modeling of single components in the BOOST model is not only limited to acoustics but can also be used to illustrate 3D effects for charge cycle calculations. It should be noted that a single BOOST model can be used for both applications. The BOOST 3D Modeler thus precisely takes into account 3D effects for complex flow components during simulation for the acoustic optimization of the entire intake and exhaust system and for the simulation of charge-cycles in the engine. The acoustic simulation of internal combustion engine exhaust systems is an important aspect in early development phases to meet customer expectations as well as the increasingly stringent legislation targets. In order to calculate the duct acoustics of intake and exhaust systems AVL BOOST offers the following simulation methods: a frequency domain solution for the quick calculation of pre-dimensioning possible without engine data and a time domain solution for the detailed design of the overall system. For the detailed examination of single components, such as exhaust mufflers, the calculation model has now been enhanced by the advanced “BOOST 3D Modeler”. In an integrated 3D Sketcher, the user generates the geometry, which subsequently is automatically linked with a network of 3D cells. The user does not require prior knowledge of how a system acts acoustically. The direct CAD-import will be supported by the next program version. The main focus of this technology has been for exhaust mufflers but it can also be applied to other > The modelling is a 3-stage process: Geometry definition, mesh specification and network generation. > The clear advantage of BOOST 3D: more accurate results at higher frequencies as the higher order modes are well predicted. Photos: AVL products
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