iRIC Software Logo



Calculation condition

  • Jul 15 2019
  • acaslam.suja

When develop the 2-D flood modelling, there are tow methods, namely CIP method and upwind scheme in the “calculation condition- Others- Finite differential method for advection terms “. What are the differences in these two methods and which one i need to select for simulating flood events. Your early replies will be highly appreciated. Thanks in advance.


  1. inoue-t says:

    Although the accuracy of CIP is higher than that of upstream scheme, I think both methods have enough accuracy for flood analysis.
    Please refer to the link below.
    CIP : method
    upwind scheme :

  2. acaslam.suja says:

    Thank you very much for the reply and sharing relevant files.


> Forum > Nays2DFlood > Calculation condition