First time here? Checkout the FAQ!
x
0 votes
by (640 points)
I couldn't find in the manual an explanation about the O2dT scheme implemented in electrics.cc (line 1211). I guess it is a second order in time discretization

$$ \frac{3\phi^{k+1}-4\phi^k+\phi^{k-1}}{2\Delta t}=\frac{1}{2}F(\phi^{k})+\frac{1}{2}F(\phi^{k+1}) $$

with a Crank- Nicolson -like evaluation of $F(\phi^k)$ and

$$ \phi^{k}:=\bar{M_i}V_m^k\,\,\,\,F(\phi^{k}):=-\left(K_i\bar{M_i}^{-1}\right)\bar{M_i}V_m^k  $$

But I couldn't find confirmation of my guess.

Thank you in advance

1 Answer

0 votes
by (17.4k points)
selected by
 
Best answer
Yes, it is a second order time integration scheme. Not as well tested as the explicit and Crank-Nicolson schemes, though.
Welcome to openCARP Q&A. Ask questions and receive answers from other members of the community. For best support, please use appropriate TAGS!
architecture, carputils, documentation, experiments, installation-containers-packages, limpet, slimfem, website, governance
...