User Forum of Software BASEMENT

Alex

User

Registered: 2015-05-27

Posts: 6

theta_critic idex

Hello everyone,

when defining the theta_critical parameter during a morphological simulation, I want to define a specific theta_critic for some areas (material 1-4) and for some areas I want it to be defined by Basement (material 5). To do so, do I set the last index to a negative number (as seen below) like in some other instances where the default value is represented by negative number?

PARAMETER {
                    bedload_transport    = mpmh
                                        theta_critical_index  = (1 2 3 4 5)
                                        theta_critic             = (0.030 0.028 0.032 0.030 -1)
                  }

Best regards,
Alex

FloKerk

User

Registered: 2015-05-19

Posts: 3

Re: theta_critic idex

Hello Alex,

by my understanding you don´t need to assign a negative number to get the default value. Try to spare out the Material in your Index-list like so...

PARAMETER {
                    bedload_transport    = mpmh
                                        theta_critical_index  = (1 2 3 4 )
                                        theta_critic             = (0.030 0.028 0.032 0.030)
                  }

greetings
Florian

Lukas Vonwiller

Developer

Registered: 2014-09-04

Posts: 130

Re: theta_critic idex

Hi Alex, hi Florian!

I just wanted to confirm the answer from Florian, thanks!
If you don't use an index, which is defined in the mesh, the theta critical is determined after the parametrized Shield's curve (Manual RI 2.1-2).

cheers,
Lukas

Alex

User

Registered: 2015-05-27

Posts: 6

Re: theta_critic idex

Thank´s a lot!