Maybe Telemac http://www.opentelemac.org/ is a good choice, Best regards!

Makes sense cause some of the commercial software are way too expensive.

Have you considered OpenLISEM?

https://blog.utwente.nl/lisem/

Thank you RG members. Your suggestions are deeply appreciated.

Please try R.avaflow. In my knowledge, this is the best open-source modeling tool. Dr. Martin Mergili and his team has done a wonderful job to develop this code. I have personally used it and endorse its applicability

https://www.landslidemodels.org/r.avaflow/

I can also recommend https://www.landslidemodels.org/r.avaflow/manual.php

1. r.avaflow - https://www.landslidemodels.org/r.avaflow/

2. Flow R- https://www.flow-r.org/

3. faSavageHutterFOAM 1.0 - Article FaSavageHutterFOAM 1.0: Depth-integrated simulation of dense...

Open source code called Loquat;

https://github.com/ChongPengGeotech/LOQUAT

You can check this paper on debris flow;

Preprint Role of baffle shape on debris flow impact in step-pools cha...

DClaw (from USGS)

Single phase debris flow model from HEC-RAS, if you don't know it already https://www.hec.usace.army.mil/confluence/rasdocs/rasmuddebris

If you want to simulate the debris flow as a solid and not as a fluid, for example to model the failure and the run-out process of the failed mass, may be you are interested in some of these available programs: https://www.researchgate.net/post/Which-softwares-are-available-for-Material-Point-Method

You can try, r-avaflow, RAMMS and DAN

Wonderful feedbacks thanks to everyone.

Anura3D

Open-Source Release of Anura3D MPM Software – Soga Research Group (berkeley.edu)

Dear Ratan,

You can check Flow-Py v1.0: a customizable, open-source simulation tool to estimate runout and intensity of gravitational mass flows (copernicus.org).

Best regards

You can check FLATModel:

https://link.springer.com/article/10.1007/s10346-007-0102-3

To me a fantastic tool is definitely OpenLisem (some details here https://blog.utwente.nl/lisem/). Instead of modeling debris flows in one way, then landslides in another, floods in another and so on, everything is modeled together. It is the systems, it is just the physics behind the instability that regulates what happens and into what a potential failure may evolve into.

Have a look and if you are curious, you can contact Bastian van den Bout (https://people.utwente.nl/b.vandenbout?tab=about-me), one of the main developers behind it.

Good luck,

LL

RAMMS and Nays2DF.

Please have a look at the following software.

Debris flow simulator ”Kanako” | （一財）砂防・地すべり技術センター (stc.or.jp)

OpenLISEM is a good open software to simulate the flood, debris flow.

DClaw is a very good software to simulate debris flow. Have a look

https://github.com/geoflows/dclaw-apps

https://dlgeorge.github.io/

Ratan Das - I suggest r.avaflow. We are getting excellent results with this code.

https://www.landslidemodels.org/r.avaflow/manual.php

Thank you Tapas Sir!

Hi,

I developed and maintain the OpenFOAM avalanche module: https://develop.openfoam.com/Community/avalanche

It can used to simulate avalanches, and debris flows with the Savage-Hutter model (1989), as well as turbidity currents with the model of Parker et al. (1986).

To get it, just download and install OpenFOAM. Many tutorials are included, it can read and write GIS data and the solver is continuously updated.

You can find many published simulations with this code on my researchgate profile.

Good luck :)