scholarly journals Time-periodic steady-state solution of fluid-structure interaction and cardiac flow problems through multigrid-reduction-in-time

2022 ◽  
Vol 389 ◽  
pp. 114368
Author(s):  
Andreas Hessenthaler ◽  
Robert D. Falgout ◽  
Jacob B. Schroder ◽  
Adelaide de Vecchi ◽  
David Nordsletten ◽  
...  
Keyword(s):  
Steady State ◽  
Fluid Structure Interaction ◽  
Steady State Solution ◽  
State Solution ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Flow Problems ◽  
Periodic Steady State ◽  
Time Periodic

Fast Time Domain Periodic Steady-state Solution of Nonlinear Electric Networks Containing DVRs

2011 ◽  
Vol 57 (2) ◽  
pp. 105 ◽  
Author(s):  
EdgarO Hernández-Martínez ◽  
Aurelio Medina ◽  
Daniel Olguín-Salinas
Keyword(s):  
Steady State ◽  
Time Domain ◽  
Steady State Solution ◽  
State Solution ◽  
Fast Time ◽  
Electric Networks ◽  
Periodic Steady State

scholarly journals Modelling and Simulation of Moored-Floating Structures Using the Tension-Element-Method

2018 ◽  
Author(s):  
Tobias Martin ◽  
Arun Kamath ◽  
Hans Bihs
Keyword(s):  
Fluid Structure Interaction ◽  
Steady State Solution ◽  
Immersed Boundary ◽  
Matrix Size ◽  
Fluid Structure ◽  
Floating Structures ◽  
Structure Interaction ◽  
Level Set Function ◽  
The Matrix ◽  
Set Function

The application of a discrete mooring model for floating structures is presented in this paper. The method predicts the steady-state solution for the shape of an elastic cable and the tension forces under consideration of static loads. It is based on a discretization of the cable in mass points connected with straight but elastic bars. The successive approximation is applied to the resulting system of equations which leads to a significant reduction of the matrix size in comparison to the matrix of a Newton-Raphson method. The mooring model is implemented in the open-source CFD model REEF3D. The solver has been used to study various problems in the field of wave hydrodynamics and fluid-structure interaction. It includes floating structures through a level set function and captures its motion using Newton and Euler equations in 6DOF. The fluid-structure interaction is solved explicitly using an immersed boundary method based on the ghost cell method. The applications show the accuracy of the solver and effects of mooring on the motion of floating structures.

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