The constructed solving process is to establish a general SBR model firstly, then to derive the suboptimum solution by trial and error method with the help of simulation tools.
Newer and newer research papers show up to both extend the possible scenarios that we can simulate, and there are also other works to speed up already existing solutions.
In fact there are more than 5,000 descendants of Sophia of Hanover who are eligible to succeed the throne, according to the language of the Act of Settlement.
The original poster tried using a few computer programs, but none of them could give what's called the " closed form" of the answer — that's a precise and concise solution.
These vortex tubes provide an accurate representation of the vorticity information within the simulation, and this is one of the rare cases where the validity of such a solution can also be shown.
So the first time they solve the box, once they kind of have that light bulb moment, they're really good at remembering that solution and then solving it again and again.
Make sure to have a look at the paper, which is certainly my kind of paper: lots of beautiful physics and a study on how to solve these equations so that we can obtain an efficient wet sand simulator.