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1 Systems : journal of transdisciplinary systems science

1 2004

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CAD/CFD Interaction in Sub Sea Vehicle Design

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Fuglestad A. L. , Grahl-Madsen M.

Systems : journal of transdisciplinary systems science

2004

tom Vol. 9, No. sp. I

5--15

The present paper report on the use of an interface tool between software for CAD (Computer Assisted Design) and CFD (Computational Fluid Dynamics). Experimental obtained data for the drag force acting on a model prototype of the HUGIN 3000 and data obtained from a Computer Aided Analysis of the drag force carried out by CFD, is also presented. The HUGIN 3000 was developed in the nineties, by Kongsberg Maritime and FFl (Norwegian Defence Research Establishment). The experimental results in this paper, origins from a model test carried out by Marintek. The range of Reynolds numbers for both the experimental data and the computational results is 2.707x107 to 1.146x10 sup>6. The agreement between the experimental data and the computed results is good. Panicularly for the highest Reynolds numbers, the prediction of drag force by CFD seems to be remarkable good.