Question on use of DualSPHysics for biomedical application

Hi all. I have just discovered DualSPHysics and I'd like some expert opinion on its appropriateness for a project I'm working on. I'm trying to model the motility of the human intestine. SPH has been used by others for this problem because of how natural it is to do FSI problems. My question is this: Would DualSPHysics be capable of solving a problem such as this:

  1. A solid phase tubular part representing the intestine from stl
  2. A fluid phase within that tube representing the contents
  3. The solid phase is made to "contract" by either specifying a stress directly to the solid material, or maybe a pseudo-temperature to cause those elements to shrink using a large thermal expansion coefficient.

Here's are examples of papers where this was done, both of which can be accessed for free online.

Schütt, Michael, et al. "Modelling and simulation of the hydrodynamics and mixing profiles in the human proximal colon using discrete multiphysics." Computers in biology and medicine 121 (2020): 103819.

Sinnott, Matthew D., et al. "Investigating the relationships between peristaltic contraction and fluid transport in the human colon using Smoothed Particle Hydrodynamics." Computers in biology and medicine 42.4 (2012): 492-503.


Thanks for your advice!

Jeff

Comments

  • Hello

    SPH should be able to do what you want. DualSPHysics might not be the optimal choice since it is geared towards more coastal engineerings topics etc.

    Perhaps have a look at:

    https://www.sphinxsys.org/

    https://www.youtube.com/watch?v=Bfhe6MGZ3eI

    Watch the youtube video first. I am sure thought that you could alter the source code of DualSPHysics in such a way that you could reproduce/model what you want - I do not think it is possible now out of the box.

    Kind regards

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