Industrial Application of the Meshless Morpher rbf-Morph to a Motorbike Windshield Optimisation

In this paper the aerodynamic optimisation of a motorbike windshield is presented. This challenging optimisation task was made possible tanks to Fluent and the embedded morpher tool RBF Morph, capable to modify the baseline mesh accounting for set-up and for shape changes. The approach is based on a suite of UDF functions that allow to prescribe surface modifications, to smooth the volume mesh accordingly and to update the fluid solution. The morpher is based on a meshless approach (i.e. is defined using only a set of points and produces a deformation field), can be used both in serial and parallel sessions and allows to manage any possible kind of mesh elements. Morphing set-up is done inside Fluent through a comprehensive and user-friendly GUI which allows to define the problem interacting with Fluent entities; moreover TUI commands are also available to modify the shape by means of simple scripts.