Recent Advances in Scaling Up Complex Fluid-Structure Interaction Simulations

2017 ◽  
Author(s):  
Rainald Lohner ◽  
Fernando Mut ◽  
Fernando Camelli ◽  
Joseph D. Baum ◽  
Orlando Soto ◽  
...  
Keyword(s):  
Fluid Structure Interaction ◽  
Scaling Up ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Recent Advances ◽  
Complex Fluid

Recent advances in computational wind engineering and fluid–structure interaction

2015 ◽  
Vol 144 ◽  
pp. 14-23 ◽  
Author(s):  
Rainald Löhner ◽  
Eberhard Haug ◽  
Alexander Michalski ◽  
Britto Muhammad ◽  
Atis Drego ◽  
...  
Keyword(s):  
Fluid Structure Interaction ◽  
Wind Engineering ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Recent Advances

Control Design for High-Fidelity Cyber-Physical Systems With Applications to Experimental Fluid-Structure Interaction Studies

2017 ◽  
Author(s):  
Rajmohan Waghela ◽  
Matthew Bryant
Keyword(s):  
Fluid Structure Interaction ◽  
Control Design ◽  
Interaction Force ◽  
Physical Structure ◽  
Model Matching ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Complex Fluid ◽  
Stiffness And Damping

A cyber-physical system (CPS) combines active actuation, sensing, and a control algorithm to virtually replicate a physical structure with desired inertia, stiffness, and damping properties. The interaction of a CPS with a fluid flow can be used to study complex fluid-structure interaction phenomena. This paper highlights some of the control design challenges associated with the design of CPS and elaborates on issues pertaining to performance and lag. A model for including the interaction force and a potential work-around to inertia compensation are presented. Finally, a case study compares classical PID control with H∞ based model-matching control design.

Complex Fluid-Structure Interaction in Ink Jet Printer Mechanisms

2000 ◽  
Author(s):  
Alton J. Reich ◽  
Paul J. Dionne
Keyword(s):  
Fluid Structure Interaction ◽  
Tight Coupling ◽  
Fluid Structure ◽  
Physical Systems ◽  
Structure Interaction ◽  
Droplet Ejection ◽  
Ejection Process ◽  
Ink Jet ◽  
Complex Fluid ◽  
Physical Phenomena

Abstract Recent advances in the ability to couple fluid and structural analyses have made it possible to simulate the behavior of increasingly complex physical systems. This paper focuses on the simulation of the fluid-structure interaction within a typical ink jet printer. The simulations demonstrate several different methods that may be used to eject a droplet of ink from a reservoir. In each case a membrane at the bottom of the ink reservoir is deformed. The movement of the membrane imparts the momentum necessary for droplet ejection to the fluid. The simulations were performed with a commercial CFD code (CFD-ACE+) that uses a modular simulation approach. This approach allows the tight coupling of the different physical phenomena that contribute to the droplet ejection process.

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