Fluid Surface Interaction (FSI)

In summary, the conversation discusses Fluid Surface Interaction (FSI) and its applications in different scenarios. The topic of FSI in human natural and artificial joints, known as thin film lubrication, is mentioned and the difference between this type of FSI and classical FSI is highlighted. The conversation also includes a question about recommended literature on FSI and a response suggesting using Google to find information on this topic. The conversation ends with a clarification on the numerical differences between solving classical FSI and thin film lubrication.
  • #1
MechEng2010
13
0
Hello all,

This is my first post on this forum, I am trying to find out about Fluid Surface Interaction (FSI), but have not found much information on it,

I have two questions at the moment:

1) Can anyone recommend any literature/books on Fluid Surface Interaction?

2) I know that FSI occurs when a fluid interacts with a solid, deforms the solid and therefore affects the fluid flow. It can occur for example in biomedical heart valves where blood flows through the heart valve. Would it be applicable in human natural and artificial joints (e.g. hip joint) where there is a fluid film rather than an a inlet-outlet type fluid flow?

Any feedback would be much appreciated

Thank-you
 
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  • #2
Hi

2)FSI at (e.g.) hip joint is called thin film lubrication. It it substantially different from classical (e.g., as you write, biomedical heart valves) FSI since the size of structures deflection is comparable with the same size of the film thickness. The topic is quite well studied by not yet completely.

1)Just try to google your application + lubrication and you will find a plenty of work on it. E.g. on hip joint http://books.google.com/books?id=V-...ook_result&ct=result&resnum=6&ved=0CDgQ6AEwBQ

M


ps: numerics for "classical" FSI and thin film lubrication are strongly different: many fem package can solve FSI, but very few of them can also solve the other.
 

What is Fluid Surface Interaction (FSI)?

Fluid Surface Interaction (FSI) is the study of how fluids (such as liquids and gases) interact with solid surfaces. This includes understanding the forces and movements that occur at the interface between a fluid and a solid, as well as the effects of these interactions on both the fluid and the solid surface.

Why is FSI important?

FSI is important because it plays a critical role in many natural and man-made processes. For example, it is crucial in designing and optimizing structures such as ships, airplanes, and bridges, as well as understanding weather patterns and ocean currents. In medicine, FSI helps us understand blood flow and the behavior of fluids in the body.

What are some methods used to study FSI?

There are several methods used to study FSI, including experimental techniques, computational simulations, and theoretical analyses. Experimental methods involve physically observing and measuring the interactions between fluids and solid surfaces, while computational simulations use mathematical models to predict and visualize these interactions. Theoretical analyses use mathematical equations and principles to understand and explain the behavior of fluids and solid surfaces.

What are some real-world applications of FSI?

FSI has numerous real-world applications in various industries. In aerospace engineering, FSI is crucial for designing efficient and safe aircraft. In marine engineering, it helps with designing ships that can withstand the forces of ocean waves. In the automotive industry, FSI is used to improve the aerodynamics and performance of vehicles. FSI also has important applications in the medical field, such as in designing medical devices and understanding the behavior of blood flow in the body.

What are some challenges in studying FSI?

One of the main challenges in studying FSI is the complex nature of fluid dynamics, which involves non-linear interactions and turbulent flows. This makes it difficult to accurately predict and model fluid behavior. Additionally, the wide range of length and time scales involved in FSI can make it challenging to obtain accurate experimental measurements and to perform efficient computational simulations. FSI also requires interdisciplinary knowledge and collaboration between scientists and engineers from different fields, which can present its own challenges.

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