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The 50:50:50 Method in the Italian journal “Ingegneria dell’autoveicolo”

11 February 2013 | Featured

A new paper about 50:50:50 method has been published on the Italian Journal “Ingegneria dell’autoveicolo” VOL. 65 N.7/8 Jul/Aug 2012. It is available using a direct link.

Abstract

Computational Fluid Dynamics (CFD) is widely used in vehicle aerodynamics development today, but typically used to study one vehicle shape at a time.

In order to be used for aerodynamic shape exploration and optimization the CFD simulation process has to be able to study a large set of design alternatives (vehicle shape variants) within the short period of time typically available in the overall aerodynamics development process.

This paper reports the development and testing of a process, referred to as the 50:50:50 Method, which is developed to study a large set of design alternatives in a highly automated way, while ensuring that each design alternative is simulated with a high fidelity CFD simulation.

The process leverages morphing, advanced CFD solver numerics, high performance computing, and process automaters to simulate 50 shape variants of a vehicle, with high fidelity CFD simulations that use a computational mesh of 50 million cells for simulating each design point, in a total elapsed time of 50 hours after initial case setup.

The development of this process and a test case with a realistic vehicle are reported.

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RBF Morph is a unique mesh-morphing technology that combines a very accurate control of the geometrical parameters with an extremely fast mesh deformation, fully integrated in the solving process. Our mission is the development and broad application of simulation technology to synthesize and optimize designs, processes and decisions for our clients that need better performances in less time.

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