Hi Dan, thank you for the suggestions! This is enough to get me started at least. It's most definitely going to be a challenging project, and this is even just one part of it. Thanks again, Damon
On Saturday, January 21, 2023 at 9:29:23 AM UTC-5 Dan Negrut wrote: > Hi Damon, > > If I were to try something like this, I would stick with the FSI solver > and would not have a “granular” region since that coupling between fluid > and grains is tough to capture and also kills the integration step size. > > Instead, I would model the mud as a continuum, since that is closer to > what you have in reality anyway. > > So then it would be “Volume A: Water”, and “Volume B: Mud”. They would > both be represented as continuum and solved with the FSI solver. Volume A > would sit on top of Volume B. > > You would have two layers of different materials in the same sim. Almost > like two phase flows. > > Here’s the closest we’ve done to that: > https://www.sciencedirect.com/science/article/pii/S0021999122001413?casa_token=f3pwPJImqC0AAAAA:OTCCtd4AM3RW1K9QfjV1rWoG0GvPYoUEAwp1L6irkq5GkWgE3S9ajN6ICGe0Ddz_B4hvgwrhi5CC > > > > > We’ve never looked at acoustic wave propagation in Chrono, but in the past > we looked at acoustic wave propagation in the context of SPH, which is what > is used in the Chrono::FSI solver: > https://asmedigitalcollection.asme.org/IMECE/proceedings/IMECE2009/43864/185/344021?casa_token=r0K4lmDOr0MAAAAA:yIU14qa3VwusByp9VjiGFlCGTDwyaEv2oq5fJXurliymdWL2VPb6gkvI2Ko5jF507oo3L2GSBQ > > > > > Also, my two cents, with or without Chrono, this is going to be a > challenging project. > > Good luck to you. > > Dan > > > > ------------------------------------------------- > > Bernard A. and Frances M. Weideman Professor > > NVIDIA CUDA Fellow > > Director, Wisconsin Applied Computing Center > > Department of Mechanical Engineering > > Department of Computer Science > > University of Wisconsin - Madison > > 4150ME, 1513 University Avenue > > Madison, WI 53706-1572 > > 608 772 0914 <(608)%20772-0914> > > http://sbel.wisc.edu/ > > http://projectchrono.org/ > > ------------------------------------------------- > > > > *From:* [email protected] <[email protected]> *On > Behalf Of *Damon Blanchette > *Sent:* Wednesday, January 18, 2023 7:28 AM > *To:* ProjectChrono <[email protected]> > *Subject:* [chrono] Wave propagation through fluid and granular material > > > > Hello! > > I'm writing with more of a question about what is possible. I'm looking to > simulate acoustic waves originating underwater, traveling through the mud, > and reflecting off objects that may be present there. > > > > So it seems like there would have to be an FSI simulation with an added > granular area representing the "mud" that the water is on top of. Under the > mud would be solid objects like spheres and cylinders. It's similar to > seismic effects. I want to see how acoustic waves that originate in the > water would travel through it, through the mud, and then reflect off the > solid objects. Is this something that is possible with Project Chrono? > > > > FTL Labs Corporation > > www.ftllabscorp.com > > 479 West Street Suite 48, Amherst, MA 01002 > > (413) 992-6075 > > > > CONFIDENTIALITY NOTICE: This e-mail communication and any attachments may > contain confidential or privileged information for the use of the > designated recipients named above. 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