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fengyanshi / FUNWAVE-TVD

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Cannot specify homogeneous friction field #48

Closed rafa-guedes closed 3 years ago

rafa-guedes commented 3 years ago

I was trying to run the model with an homogeneous friction field by specifying:

FRICTION_MATRIX = F
Cd_fixed = 0.002

but it looks like these are not being picked up by the model for some reason. I'm wondering if I'm missing something or if there could be some problem with the model version I'm building (Funwave 3.5).

The log file keeps telling me that:

 Cd DOES NOT EXIST. USE DEFAULT VALUE
Cd_fixed Default:  0.0, possibly you use

Changing the value of Cd_fixed results in no effects in my simulations.

The friction specification seems to be working as expected though when I define it with an inhomogeneous friction field by:

FRICTION_MATRIX = T
FRICTION_FILE = ./filename.txt

Thanks

malej commented 3 years ago

Can you try

Cd = 0.002

Without _fixed

On May 22, 2021, at 5:54 AM, Rafael Guedes @.***> wrote:

 I was trying to run the model with an homogeneous friction field by specifying:

FRICTION_MATRIX = F Cd_fixed = 0.002 but it looks like these are not being picked up by the model for some reason. I'm wondering if I'm missing something or if there could be some problem with the model version I'm building (Funwave 3.5).

The log file keeps telling me that:

Cd DOES NOT EXIST. USE DEFAULT VALUE Cd_fixed Default: 0.0, possibly you use Changing the value of Cd_fixed results in no effects in my simulations.

The friction specification seems to be working as expected though when I define it with an inhomogeneous friction field by:

FRICTION_MATRIX = T FRICTION_FILE = ./filename.txt Thanks

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rafa-guedes commented 3 years ago

That worked thanks!

It would be good to update the wiki if possible as Cd_fixed is the one mentioned there.