17 resultados para Transport Modelling


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This study aims to assess the performance or multi-layer canopy parameterizations implemented in the mesoscale WRF model in order to understand their potential contribution to improve the description of energy fluxes and wind fields in the Madrid city. It was found that the Building Energy Model (BEP+BEM) parameterization yielded better results than the bulk standard scheme implemented in the Noah LSM, but very close to those of the Building Energy Parameterization (BEP). The later was deemed as the best option since data requirements and CPU time were smaller. Two annual runs were made to feed the CMAQ chemical-transport model to assess the impact of this feature in routinely air quality modelling activities.

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The appearance of new materials and smaller and more capable actuators enable the morphing controlled deformation of the aerodynamic shape of wing like type of structures. This contribution presents the applied aerodynamics studies of a morphing rudder for a commercial transport aircraft. The conventional rudder aerodynamics is CFD modeled and the results correlated to certification loads report. The morphing rudder CFD model predicts better aerodynamics efficiency in relation to the conventional one. This conclusion is the first step for future commercial aircraft Vertical Tail Plane weight reductions with morphing rudder implementation.