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Experimental and numerical investigations of HSVA-tanker-2 flow field
Citation Link: https://doi.org/10.15480/882.952
Publikationstyp
Technical Report
Date Issued
1992
Sprache
English
Author(s)
TORE-DOI
Experimental and numerical investigations of HSVA-tanker-2 flow field
The flow around the double-model of a ship hull was investigated experimentally and numerically. The hull form was designed by SSPA with the purpose to serve as second test case in the competition of computational methods, the 1991 SSPACTH-UHR Workshop on Ship Viscous Flow, and was characterized by U-shaped stern sections in order to get a more uniform flow in the propeller plane. The experiments were performed in the wind-tunnel. The distribution of the mean velocity was investigated by three-component LDV-measurements at 5 stations, leading to detailed surveys (800 points scanned). Turbulence was investigated too and charts of the distribution of turbulent kinetic energy kin the downstream stern region could be drawn. The directional field of wall shear stresses was visualized with paint in the stern region and wall-pressure was recorded there by pressure taps. The numerical investigation centered around a detailed computation of the three-dimensional turbulent boundary layer by a program of the Cebeci-type (using a simple algebraic turbulence model and as outer velocity field the output of a potential theoretic computation with one half of the hull approximated by more than 1800 panels). Wall press ure values and boundary-Iayer velocity profiles show fair agreement with experiment for the upstream stations.
The flow around the double-model of a ship hull was investigated experimentally and numerically. The hull form was designed by SSPA with the purpose to serve as second test case in the competition of computational methods, the 1991 SSPACTH-UHR Workshop on Ship Viscous Flow, and was characterized by U-shaped stern sections in order to get a more uniform flow in the propeller plane. The experiments were performed in the wind-tunnel. The distribution of the mean velocity was investigated by three-component LDV-measurements at 5 stations, leading to detailed surveys (800 points scanned). Turbulence was investigated too and charts of the distribution of turbulent kinetic energy kin the downstream stern region could be drawn. The directional field of wall shear stresses was visualized with paint in the stern region and wall-pressure was recorded there by pressure taps. The numerical investigation centered around a detailed computation of the three-dimensional turbulent boundary layer by a program of the Cebeci-type (using a simple algebraic turbulence model and as outer velocity field the output of a potential theoretic computation with one half of the hull approximated by more than 1800 panels). Wall press ure values and boundary-Iayer velocity profiles show fair agreement with experiment for the upstream stations.
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Bericht_Nr.521_J.DenkerT.KnaackJ.kux_Experimental_and_Numerical_Investigations_of_HSVA_Tanker_2_Flow_Field.pdf
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