Fluid–structure interactions (FSI) are among the most challenging for multiphysics computational analysis. A deformable structure is loaded by a flowing fluid, the nature of the deformation affects the fluid flow which in turn affects the deformation response. In this way the deformation and fluid flow are intimately coupled and are considered too complex to solve analytically and have to be solved by computational analyses.
Understanding the interaction of a movable or deformable structure with an internal or surrounding fluid flow is crucial to the design and operation of many engineering technologies. A classic example of an FSI induced failure relates to the Tacoma Narrows bridge.
But fluid-structure interaction is also important for turbine blades, arterial blood flow and vibrating reeds.
AltaSim Technologies has developed modeling and simulation capabilities to analyze the fluid structure interaction phenomenon and has successfully applied them in the biomedical, automotive, microfluidic and petrochemical industries. This has allowed designers to develop products in which the effects of FSI are tailored to provide reliable, tangible product benefit and eliminate the detrimental effects of FSI.
AltaSim’s analysis of FSI has been used to address the following topics:
- Blood flow through flexible systems
- Noise and vibration induced by fluid flow
- Structural vibration due to intermittent transient flow through compressors
- Fluid cavitation in flowing media
- Valve closure
- Material transport through porous membranes
- Vibration induced fluid heating
- Vibration induced two phase flow fluid flow
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