scholarly journals Efficient computation of two-dimensional steady free-surface flows

2017 ◽  
Vol 86 (9) ◽  
pp. 607-624 ◽  
Author(s):  
Ravindra Pethiyagoda ◽  
Timothy J. Moroney ◽  
Scott W. McCue
Keyword(s):  
Free Surface ◽  
Free Surface Flows ◽  
Two Dimensional ◽  
Efficient Computation ◽  
Surface Flows

Advanced CFD Simulations of free-surface flows around modern sailing yachts using a newly developed openFOAM solver

2016 ◽  
Author(s):  
Janek Meyer ◽  
Hannes Renzsch ◽  
Kai Graf ◽  
Thomas Slawig
Keyword(s):  
Free Surface ◽  
Large Scale ◽  
Breaking Waves ◽  
Free Surface Flows ◽  
Body Motion ◽  
Computational Time ◽  
Efficient Computation ◽  
Surface Flows ◽  
Scale Free ◽  
Wide Range

While plain vanilla OpenFOAM has strong capabilities with regards to quite a few typical CFD-tasks, some problems actually require additional bespoke solvers and numerics for efficient computation of high-quality results. One of the fields requiring these additions is the computation of large-scale free-surface flows as found e.g. in naval architecture. This holds especially for the flow around typical modern yacht hulls, often planing, sometimes with surface-piercing appendages. Particular challenges include, but are not limited to, breaking waves, sharpness of interface, numerical ventilation (aka streaking) and a wide range of flow phenomenon scales. A new OF-based application including newly implemented discretization schemes, gradient computation and rigid body motion computation is described. In the following the new code will be validated against published experimental data; the effect on accuracy, computational time and solver stability will be shown by comparison to standard OF-solvers (interFoam / interDyMFoam) and Star CCM+. The code’s capabilities to simulate complex “real-world” flows are shown on a well-known racing yacht design.

Waveless Free-Surface Pressure Distributions

1985 ◽  
Vol 29 (03) ◽  
pp. 151-158
Author(s):  
J.-M. Vanden Broeck ◽  
E. O. Tuck
Keyword(s):  
Free Surface ◽  
Surface Pressure ◽  
Free Surface Flows ◽  
Two Dimensional ◽  
Surface Flows ◽  
Pressure Distributions ◽  
Potential Applications ◽  
Linear And Nonlinear ◽  
Uniform Stream

Linear and nonlinear studies are made of two-dimensional free-surface flows under gravity, in which a disturbance is caused to an otherwise uniform stream by a distribution of pressure over the free surface. In general, such a disturbance creates a system of trailing waves. There are special disturbances that do not, however, and some categories of such disturbances are discussed here. This work has potential applications to design of splashless ship bows.

scholarly journals Hybrid free-surface flows in a two-dimensional channel

2011 ◽  
Vol 84 (1) ◽  
Author(s):  
Benjamin James Binder ◽  
Jean-Marc Vanden-Broeck
Keyword(s):  
Free Surface ◽  
Free Surface Flows ◽  
Two Dimensional ◽  
Surface Flows
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