Accuracy and Performance of Fluid-Structure Interaction Algorithms with Explicit versus Implicit Formulations of the Fluid Solver

2017 ◽  
Author(s):  
YiQin Xu ◽  
Yulia T. Peet
Keyword(s):  
Fluid Structure Interaction ◽  
Fluid Structure ◽  
Structure Interaction ◽  
And Performance

A stabilized ALE method for computational fluid–structure interaction analysis of passive morphing in turbomachinery

2019 ◽  
Vol 29 (05) ◽  
pp. 967-994 ◽  
Author(s):  
Alessio Castorrini ◽  
Alessandro Corsini ◽  
Franco Rispoli ◽  
Kenji Takizawa ◽  
Tayfun E. Tezduyar
Keyword(s):  
Fluid Mechanics ◽  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Arbitrary Lagrangian Eulerian ◽  
Axial Fan ◽  
Fluid Structure ◽  
Ale Method ◽  
Structure Interaction ◽  
And Performance ◽  
Passive Morphing

Computational fluid–structure interaction (FSI) and flow analysis now have a significant role in design and performance evaluation of turbomachinery systems, such as wind turbines, fans, and turbochargers. With increasing scope and fidelity, computational analysis can help improve the design and performance. For example, it can help add a passive morphing attachment (MA) to the blades of an axial fan for the purpose of controlling the blade load and section stall. We present a stabilized Arbitrary Lagrangian–Eulerian (ALE) method for computational FSI analysis of passive morphing in turbomachinery. The main components of the method are the Streamline-Upwind/Petrov–Galerkin (SUPG) and Pressure-Stabilizing/Petrov–Galerkin (PSPG) stabilizations in the ALE framework, mesh moving with Jacobian-based stiffening, and block-iterative FSI coupling. The turbulent-flow nature of the analysis is handled with a Reynolds-Averaged Navier–Stokes (RANS) model and SUPG/PSPG stabilization, supplemented with the “DRDJ” stabilization. As the structure moves, the fluid mechanics mesh moves with the Jacobian-based stiffening method, which reduces the deformation of the smaller elements placed near the solid surfaces. The FSI coupling between the blocks of the fully-discretized equation system representing the fluid mechanics, structural mechanics, and mesh moving equations is handled with the block-iterative coupling method. We present two-dimensional (2D) and three-dimensional (3D) computational FSI studies for an MA added to an axial-fan blade. The results from the 2D study are used in determining the spanwise length of the MA in the 3D study.

Development of Coupled Fluid-Structure Interaction Code for Explosion Problem

2013 ◽  
Vol 767 ◽  
pp. 92-97
Author(s):  
Tei Saburi ◽  
Shiro Kubota ◽  
Yuji Wada ◽  
Masatake Yoshida
Keyword(s):  
Energetic Materials ◽  
Large Scale ◽  
Equations Of State ◽  
Hazard Analysis ◽  
Fluid Structure Interaction ◽  
Multidimensional Analysis ◽  
Fluid Structure ◽  
Structure Interaction ◽  
And Performance ◽  
Physical Hazard

A multidimensional analysis code for reactive shocks (MARS), which is developed to solve various problems in the physical hazard analysis of high energetic materials, has been applied to such complex problems as multi-material problem and sympathetic problem because it can employ various types of equations of state and a materials database. However, it was difficult to meet a growing demand for large-scale analysis and fluid-structure interaction (FSI) analysis. To address these issues, this study reports a parallelization of the code and an implementation of the functional capability of FSI analysis, and performance results for sample problems were also shown.

scholarly journals Partitioned Solution Strategies for Strongly-Coupled Fluid-Structure Interaction Problems in Maritime Applications

2018 ◽  
Author(s):  
Marcel König
Keyword(s):  
Fluid Structure Interaction ◽  
Benchmark Problems ◽  
Maritime Industry ◽  
Fluid Structure ◽  
Strongly Coupled ◽  
Solution Approach ◽  
Structure Interaction ◽  
Solution Strategies ◽  
Software Reusability ◽  
And Performance

Eine sehr interessante und umfangreiche Arbeit aus der „Arbeitsgruppe Numerische Strukturanalyse mit Anwendungen in der Schiffstechnik“ aus dem Institut „M-10“ der Technischen Universität Hamburg – das lohnt sich!. Many engineering applications are governed by coupled multifield phenomena. In this thesis, a partitioned solution approach is followed to solve these kind of problems, which does not only enable the use of different discretization schemes for each of the subproblems but also allows to reuse specialized and efficient solvers, which enhances modularity, software reusability, and performance. A framework for the partitioned analysis of general multifield problems is proposed and implemented in the generic software library comana, which is verified against various benchmark problems and successfully applied to sophisticated fluid-structure interaction problems from the maritime industry. ...

Fluid-structure interaction modeling and performance analysis of the Orion spacecraft parachutes

2010 ◽  
Vol 65 (1-3) ◽  
pp. 271-285 ◽  
Author(s):  
Kenji Takizawa ◽  
Creighton Moorman ◽  
Samuel Wright ◽  
Timothy Spielman ◽  
Tayfun E. Tezduyar
Keyword(s):  
Performance Analysis ◽  
Fluid Structure Interaction ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Interaction Modeling ◽  
And Performance ◽  
Spacecraft Parachutes
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