I was curious if there was any software (preferably in C++, Java, and/or python) that could be used to simulate the following:

Heat capacity of a fluid Heat transfer through a liquid and a solid specific heat molten salt flow as a liquid operating temperatures for salt around 600 C Effectively, this is simulating the chemistry and thermodynamics parts of a molten salt reactor.

Any price range will do, however, cheaper programs (even if they do have to cut out some of the more complicated processes) are preferred.

EDIT: Link to related question: https://physics.stackexchange.com/questions/497077/software-to-simulate-molten-salt-flow-and-thermodynamic-operations

  • 1
    $\begingroup$ I am not an expert at all in this topic. However, COMSOL would be one of the commonly used tools for multiphysics. How does this correspond to what you are actually looking for? $\endgroup$
    – Anton Menshov
    Aug 19, 2019 at 20:37
  • 1
    $\begingroup$ What is the model you want to solve? The Navier-Stokes equations (plus temperature equations) for high-speed flow, or is the Stokes equation sufficient? How large are the temperature variations? Sufficient that you need to consider the density a variable? $\endgroup$ Aug 19, 2019 at 20:58
  • $\begingroup$ @Anton Menshov that is what I am looking for, but if the software might also be extended to heat transfer onto other surfaces through a heat exchanger. $\endgroup$
    – t1r3d
    Aug 19, 2019 at 21:41
  • $\begingroup$ @Wolfgang Bangerth the Navier-Strokes equation will be needed in addition to any basic concepts surrounding heat capacity, temperature changes in the salt given a certain amount of radioactive decay, directionality of the molten salt flow at around 0.5 m/s, and systems that can operate between 20 degrees C and 600 degrees C with density of salt changing accordingly. $\endgroup$
    – t1r3d
    Aug 19, 2019 at 21:44
  • 1
    $\begingroup$ I have seen Fluent for molten salt in thermocline tanks. Check these two references: "Short and long-term sensitivity thermocline thermal storage" Applied Thermal Engineering 109 (2016): 936-948. "Comparative analysis of single-and dual-media thermocline." Journal of Solar Energy Engineering 137.3 (2015): 031012. $\endgroup$
    – nicoguaro
    Aug 20, 2019 at 15:44

1 Answer 1


I will convert my comment to an answer.

One of the commonly used simulation tools for multiphysics is Comsol. It would allow you to tie the simulations from different modules into one multiphysics model using a relatively simple GUI and allow for postprocessing & visualization.

In particular, this paper describes the electrical and bubbly flow simulation of the molten salt, which you could augment with the heat transfer using Comsol Heat Transfer module. Comsol also holds technical conferences (the paper I linked is an example), where you can find a lot of hints on multiphysics modeling. I bet, there are other molten salt simulations with Comsol papers out there.

If you want to look for alternatives, you would have to know much more about your simulations and the mathematics behind the appropriate models. It is quite possible that you would be able to build your simulation using FEniCS, or some other alternatives, but that would require you to figure out the math behind first, and then assemble it – there will not be any cutting corners in this route.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.