I have a hard time finding problem sets for validation and
benchmarking of methods and codes for 3d fluid simulation with free
boundaries. Please guide me to (standardized) problem sets or key
litterture that is a suitable starting point. If there are not many
standardized tests I would like to initiate a dsicussion about what a
good test collection should be. I understand that iMechanica is focused
more on solid mechanics than fluid dynamics but the overlap is big.  

I have a hard time finding problem sets for validation and benchmarking of methods and codes for 3d fluid simulation with free boundaries. Please guide me to (standardized) problem sets or key litterture that is a suitable starting point. If there are not many standardized tests I would like to initiate a dsicussion about what a good test collection should be. I understand that iMechanica is focused more on solid mechanics than fluid dynamics but the overlap is big.

The best collection I have found so far is the one from SPHERIC (http://wiki.manchester.ac.uk/spheric/index.php/SPHERIC_Home_Page) but there should be more. Meeting the 2D benchmark tests is not a guarantee that a 3D code is working properly

Hi,

Im a real beginner at Abaqus, and trying to model a hollow structure floating in water. I've managed to model the structure, but I do not know where to start with regards to modelling water. I also need to apply a gravity load to the structure, but am having difficulty doing so.

Is anyone able to help.

Many Thanks

I've been tasked with creating a 3D model of a demo inflatable
structure here in our lab. The goal is to inflate it in ABAQUS, and I
have been making some progress in using the *FLUID CAVITY keyword.
However I'm noticing odd things in my results. I have the pressure of
the gas increase to 4psi in a tabular form, however as I watch the
frame by frame, the stress concentrations on the structure vary oddly,
and the model deforms oddly. Almost as if it was a ball being pressed
back and forth against the floor, expand contract, that kind of deal.
I'm not really sure what is causing it.

I thought the mechanics community would be interested in the course notes of
Prof. K. J. Bathe on "Finite Element Analysis of Solids and Fluids". This
course was taught at MIT and now is available freely through MIT Open
CourseWare website:

http://ocw.mit.edu/courses/mechanical-engineering/2-094-finite-element-analysis-of-solids-and-fluids-spring-2008/

Enjoy!

Starting with a solid mechanics background, I have been recently interested in fluid-structure interactions for applications in biomechanics of soft-tissues; and thought that the iMechanica Journal Club forum would be a good opportunity to share my personal experience and start a discussion on this challenging inter-disciplinary subject.

could you please give me a reference about multiscale fluid mechanics?