open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello

I run a case with drogues and I checked that the calculation is done through subroutine SCHAR11.

In there one can find this

NSP=MAX(1,INT(NRK*DT*SQRT((DXP**2+DYP**2)*SURDET(IEL))))
PAS = SENS * DT / NSP


where NSP is the number of sub-steps for the Runge Kutta method.

Does anyone know what are the terms on the equations above : NRK, SURDET(IEL), SENS

many thanks and regards
Nikos

Hello Nikos

Sorry for this late reply.
Hereafter your request:
-surdet: is 1/determinant, which is a facter needed to switch to isoparametric element in finite elements
- SENS: is the direction of the path of the characteristics it can be backward or forward
- NRK is the number of sub-steps for the Runge Kutta method, it is not NSP

I hope that this helps

with my kind regards

Riadh