VMFL077

VMFL077
Free Surface Flow Around a Ship

Overview

Reference	Sarda, O. P. Turbulent Flows Past Ship Hulls – An Experimental and Computational Study, PhD thesis, University of Iowa, 1986.
Solver	Ansys Fluent
Physics/Models	Turbulent, Free Surface Flow
Input File	`VMFL077_FLUENT.cas`
Project Files	Link to Project Files Download Page

Test Case

Free surface flow around a ship. In this multiphase open channel flow problem, the profile of free surface at ship hull is compared with experimental results.

Figure 180: Flow Domain

Material Properties	Geometry	Boundary Conditions
Water Density : 997 kg/m³ Water Viscosity: 0.008899 kg/m-s	The hull geometry has a parabolic shape with a hull length = 3.014 m.	Pressure inlet and pressure outlet with multiphase open channel boundary. Reynold’s number=4900000 at inlet.

Material Properties

Geometry

Boundary Conditions

Water Density : 997 kg/m³

Water Viscosity: 0.008899 kg/m-s

The hull geometry has a parabolic shape with a hull length = 3.014 m.

Pressure inlet and pressure outlet with multiphase open channel boundary. Reynold’s number=4900000 at inlet.

Analysis Assumptions and Modeling Notes

The flow is steady. SST k-w model is used for turbulence modeling. Polyhedral mesh of 921470 cells is used to discretize the domain.

Results Comparison for Ansys Fluent

Figure 181: Comparison of water level on the hull surface with experimental data