3D Viscous Free-Surface Flow around a Combatant Ship Hull

2009 ◽  
Author(s):  
Florin Pacuraru ◽  
Adrian Lungu ◽  
Viorel Maria ◽  
Theodore E. Simos ◽  
George Psihoyios ◽  
...  
Keyword(s):  
Free Surface ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Ship Hull

scholarly journals Grid Type Impact on the Results of the Volume of Fluid Method in the Free Surface Flow Calculations Around Ship Hull

2018 ◽  
Vol 1 (1) ◽  
pp. 151-157
Author(s):  
Karol Sugalski ◽  
Tomáš Skrúcaný
Keyword(s):  
Free Surface ◽  
Fluid Dynamic ◽  
Free Surface Flow ◽  
Triangular Mesh ◽  
Surface Flow ◽  
Ship Hull ◽  
Hexahedral Mesh ◽  
Two Phase ◽  
Advantages And Disadvantages ◽  
Hexahedral Meshes

Abstract This article presents results of the free surface flow around ship hull on two different types of computational grid. Each type of mentioned grid has its own advantages and disadvantages in particular cases, mostly in one phase simulation. Omitting cases with capitation, there is no free surface involved in one phase simulation. Multiphase simulations are crucial in the ship design process and optimization. Recreating free surface on the triangular mesh causes difficulties, in contrast to the hexahedral meshes, where calculated surface is more aligned to the physical border of the fluids. In this paper, results from the triangular mesh were compared to results from hexahedral mesh. Conclusions about triangular meshes in two phase simulation are presented. The computational fluid dynamic toolbox OpenFOAM is used to perform calculations of the total resistance of work boat in calm water.

scholarly journals FREE SURFACE FLOW SIMULATION AROUND AN APPENDED SHIP HULL

Brodogradnja ◽  
2018 ◽  
Vol 69 (3) ◽  
pp. 25-41
Author(s):  
Yavuz Hakan Ozdemir ◽  
◽  
Baris Barlas ◽  
Keyword(s):  
Free Surface ◽  
Flow Simulation ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Ship Hull

Simulation of unsteady free-surface flow around a ship hull using a fully coupled multi-phase flow method

2008 ◽  
Vol 13 (4) ◽  
pp. 346-355 ◽  
Author(s):  
Philip J. Zwart ◽  
Philippe G. Godin ◽  
Justin Penrose ◽  
Shin Hyung Rhee
Keyword(s):  
Free Surface ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Ship Hull ◽  
Phase Flow ◽  
Flow Method ◽  
Multi Phase Flow ◽  
Multi Phase ◽  
Fully Coupled

scholarly journals Laminar free-surface flow into a vertical cylinder

1975 ◽  
Vol 3 (1) ◽  
pp. 51-68 ◽  
Author(s):  
Thomas G. Smith ◽  
J.O. Wilkes
Keyword(s):  
Free Surface ◽  
Vertical Cylinder ◽  
Free Surface Flow ◽  
Surface Flow

Free-Surface Flow Simulations With Interactively Moving Bodies

2017 ◽  
Author(s):  
Arthur E. P. Veldman ◽  
Henk Seubers ◽  
Peter van der Plas ◽  
Joop Helder
Keyword(s):  
Free Surface ◽  
Free Fall ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Numerical Solution Method ◽  
Flow Simulations ◽  
Floating Object ◽  
Offshore Industry ◽  
Floating Objects ◽  
Moving Bodies

The simulation of free-surface flow around moored or floating objects faces a series of challenges, concerning the flow modelling and the numerical solution method. One of the challenges is the simulation of objects whose dynamics is determined by a two-way interaction with the incoming waves. The ‘traditional’ way of numerically coupling the flow dynamics with the dynamics of a floating object becomes unstable (or requires severe underrelaxation) when the added mass is larger than the mass of the object. To deal with this two-way interaction, a more simultaneous type of numerical coupling is being developed. The paper will focus on this issue. To demonstrate the quasi-simultaneous method, a number of simulation results for engineering applications from the offshore industry will be presented, such as the motion of a moored TLP platform in extreme waves, and a free-fall life boat dropping into wavy water.

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