EHTC 2009

Fan System Design and Performances Prediction Through Optimization Process

Manuel Henner, Valeo

Valeo is a tier one supplier in the automotive industry, which studied and produces among many others parts fan systems used for the cooling of thermal engines. These components whose aerodynamic action is studied for a long time by the mean of the numerical simulation must provide performances in constant progress, despite that constraints on packaging, power consumption and noise are of increasingly strong.

To be able to propose fans which provide the best physically achievable performance, it was decided to work on an optimization methodology based on the experience already gained in both fields of turbomachinery design and numerical simulation.

Altair tools are used to chain the process, to lead the optimization and to perform calculations. The interest of this work lies in the fact that it serves at once to build knowledge by formalizing the parameters, and to propose a more efficient and safer way to achieve the aerodynamic goals.

The time normally devoted to iterate almost manually on numerous configurations is allocated to tasks which complete the virtual study of the product at earlier stage of the project. It is thus possible to carry out assessments of noise performance through post-treatment with specific tools included in the CFD software from Metacomp Technologies (CFD + +).

This work is part of Expamtion project which aims to explore a collaborative platform for supercomputing.

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