Title: Three-dimensional simulation of transom stern flow at various Froude numbers and trim angles

Authors: Parviz Ghadimi; Mohammad A. Feizi Chekab; Abbas Dashtimanesh; Seyed Hamid R. Mirhosseini

Addresses: Department of Marine Technology, Amirkabir University of Technology, Hafez Ave, No. 424, P.O. Box 15875-4413, Tehran, Iran ' Department of Marine Technology, Amirkabir University of Technology, Hafez Ave, No. 424, P.O. Box 15875-4413, Tehran, Iran ' Faculty of Engineering, Persian Gulf University, Bushehr, Iran ' Department of Marine Technology, Amirkabir University of Technology, Teheran, Iran

Abstract: Numerical simulation of transom stern flow has proven to be an interesting topic, but a complicated task in the hydrodynamic field of research. In this paper, a three-dimensional numerical simulation is presented using Ansys-CFX to survey the free surface flow, downstream of the transom stern. To this end, finite volume method coupled with volume of fluid is utilised and k-ε turbulent model is applied. The numerical solutions are validated by comparing the findings against the results of empirical formula available in the literature. In order to conduct a parametric study, four different Froude numbers, four trim angles, and two deadrise angles are considered and the effect of each of these parameters is studied.

Keywords: transom stern; three-dimensional simulation; parametric study; Ansys-CFX; free surface modelling.

DOI: 10.1504/PCFD.2018.093572

Progress in Computational Fluid Dynamics, An International Journal, 2018 Vol.18 No.4, pp.232 - 240

Received: 07 Apr 2016
Accepted: 22 Aug 2016
Published online: 30 Jul 2018 *

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