Fluid simulator?

Question

C++ / C#

Hello!
Question: if the corresponding simulators are freely available with the ability to pour liquid from one container to another, and if not, what is the most convenient way to develop?
From theory, I read this and this - but still, I think it’s not entirely correct to develop from scratch.

Answer 1

Here is an interesting article habrahabr.ru/post/139028/ , but for water in 2D.