scholarly journals Toward free-surface flow simulations with correct energy evolution: An isogeometric level-set approach with monolithic time-integration

2019 ◽  
Vol 181 ◽  
pp. 77-89 ◽  
Author(s):  
I. Akkerman ◽  
M.F.P. ten Eikelder
Keyword(s):  
Free Surface ◽  
Level Set ◽  
Time Integration ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Energy Evolution ◽  
Flow Simulations ◽  
Correct Energy ◽  
Level Set Approach

Free surface flow through rock-fill dams analyzed by FEM with level set approach

2001 ◽  
Vol 27 (3) ◽  
pp. 233-243 ◽  
Author(s):  
N. H. Sharif ◽  
N.-E. Wiberg ◽  
M. Levenstam
Keyword(s):  
Free Surface ◽  
Level Set ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Rock Fill ◽  
Flow Through ◽  
Level Set Approach

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.

New modified gradient models for MPS method applied to free-surface flow simulations

2017 ◽  
Vol 66 ◽  
pp. 95-116 ◽  
Author(s):  
Farnoush A. Daneshvar ◽  
G. Reza Rakhshandehroo ◽  
Nasser Talebbeydokhti
Keyword(s):  
Free Surface ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Mps Method ◽  
Flow Simulations ◽  
Gradient Models

Two methods of surface tension treatment in free surface flow simulations

2018 ◽  
Vol 86 ◽  
pp. 236-242 ◽  
Author(s):  
Kirill D. Nikitin ◽  
Kirill M. Terekhov ◽  
Yuri V. Vassilevski
Keyword(s):  
Surface Tension ◽  
Free Surface ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Flow Simulations

scholarly journals The Finite Element Numerical Investigation of Free Surface Newtonian and Non-Newtonian Fluid Flows in the Rectangular Tanks

2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Puyang Gao
Keyword(s):  
Finite Element ◽  
Free Surface ◽  
Level Set ◽  
Newtonian Fluid ◽  
Mass Conservation ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Two Phase ◽  
Navier Stokes Equation ◽  
Correction Technique

In this paper, we develop a new computational framework to investigate the sloshing free surface flow of Newtonian and non-Newtonian fluids in the rectangular tanks. We simulate the flow via a two-phase model and employ the fixed unstructured mesh in the computation to avoid the mesh distortion and reconstruction. As for the solution of Navier–Stokes equation, we utilize the SUPG finite element method based on the splitting scheme. The same order interpolation functions are then used for velocity and pressure. Moreover, the moving interface is captured via the concise level set method. We take advantage of the implicit discontinuous Galerkin method to handle the solution of level set and its reinitialization equations. A mass correction technique is also added to ensure the mass conservation property. The dam break-free surface flow is simulated firstly to demonstrate the validity of our mathematical model. In addition, the sloshing Newtonian fluid in the tank with flat and rough bottoms is considered to illustrate the feasibility and robustness of our computational scheme. Finally, the development of free surface for non-Newtonian fluid is also studied in the two tanks, and the influence of power-law index on the sloshing fluid flow is analyzed.

Level set-based topology optimization for free surface flow using MPS method

2018 ◽  
Vol 2018.13 (0) ◽  
pp. 106
Author(s):  
Yusuke Sasaki ◽  
Takayuki Yamada ◽  
Kazuhiro Izui ◽  
Shinji Nishiwaki
Keyword(s):  
Free Surface ◽  
Topology Optimization ◽  
Level Set ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Mps Method

Optimization and stabilization of LBM free surface flow simulations using adaptive parameterization

2006 ◽  
Vol 35 (8-9) ◽  
pp. 934-939 ◽  
Author(s):  
Nils Thürey ◽  
Thomas Pohl ◽  
Ulrich Rüde ◽  
Markus Öchsner ◽  
Carolin Körner
Keyword(s):  
Free Surface ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Flow Simulations

scholarly journals A level-set aided single-phase model for the numerical simulation of free-surface flow on unstructured meshes

2016 ◽  
Vol 140 ◽  
pp. 97-110 ◽  
Author(s):  
Eugenio Schillaci ◽  
Lluís Jofre ◽  
Néstor Balcázar ◽  
Oriol Lehmkuhl ◽  
Assensi Oliva
Keyword(s):  
Numerical Simulation ◽  
Free Surface ◽  
Level Set ◽  
Single Phase ◽  
Free Surface Flow ◽  
Unstructured Meshes ◽  
Surface Flow ◽  
Phase Model
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