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Study of the Sloshing in a Fuel Tank Using CFD and EFD Approaches

[+] Author Affiliations
Emma Frosina, Adolfo Senatore, Assunta Andreozzi, Gianluca Marinaro, Dario Buono, Gennaro Bianco, Domenico Auriemma

University of Naples “Federico II”, Naples, Italy

Francesco Fortunato, Fulvio Damiano, Pino Giliberti

Fiat Chrysler Automobiles, Naples, Italy

Paper No. FPMC2017-4337, pp. V001T01A068; 13 pages
doi:10.1115/FPMC2017-4337
From:
  • ASME/BATH 2017 Symposium on Fluid Power and Motion Control
  • ASME/BATH 2017 Symposium on Fluid Power and Motion Control
  • Sarasota, Forida, USA, October 16–19, 2017
  • Conference Sponsors: Fluid Power Systems and Technology Division
  • ISBN: 978-0-7918-5833-2
  • Copyright © 2017 by ASME

abstract

This paper is focused on the study of the sloshing in the fuel tank of vehicles. As well known, fluid dynamic in an automotive fuel tank have to be studied and optimized to allow the correct fuel suction in all driving conditions, prevent undesired slosh noise and limit its influence on fuel vapor formation and management. Experimentation to predict the sloshing with a good accuracy depends on the ability to replace real working parameters and conditions like accelerations, decelerations, slope variations and rotations.

This paper shows results obtained studying the sloshing inside a reference tank with computational fluid-dynamic and experimental approaches.

The test bench for automotive fuel tank, employed in this analysis, has been designed by Moog Inc. on specification from Fiat Chrysler Automobiles and it is aimed at covering the wider possible range of dynamic conditions. It basically consists of a hexapod, which uses six independent actuators arranged in three triangles and connecting a base and a top platform, thus allowing all six DOFs. Above the top platform is mounted a tilt table with two additional actuators, to extend pitch and roll envelope, thus the name of “8-DOF bench”.

A dedicated CFD model has been built up using a CFD commercial code. The model has been integrated with the multiphase tool in order to correctly reply the real free surface.

Results, numerical and experimental, have been post-processed with Matlab® comparing percentage gaps of the free surfaces each other. The comparison has shown a good agreement.

This research is the result of a scientific collaboration between the Industrial Engineering Department of University of Naples Federico II and FCA Fiat Chrysler Automobiles.

Copyright © 2017 by ASME

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