User Forum of Software BASEMENT

Rebecca_Ag

User

Registered: 2024-02-21

Posts: 12

Suspended load block

Good Morning everyone!

I want to model a plastic release in a 5km long channel with a regular geometry.
I was wondering to use the Suspended Load block and treat sediment as plastic particles by changing density and diameter since i need to consider the settling velocity.

I followed the previous posts on this forum regarding suspended load. But the model seems not to run. I write it and once i run it doesn't load the cross sections. I receive this message :

BASEMENT v4.0.2 (v4.0.2)
BASEMD omp binary
-> Domain: Input file has been successfully parsed and passed preliminary
   validation
-> *** Start Simulation ***
-> OpenMP: Computation is executed in parallel using 8 threads
-> Domain Initialized
-> initialize domain done
-> initialize networkcommunication done
-> Initialization of SubDomain 'New_sim'
-> TopoBMG: Input file has 11 warnings and 0 errors
-> Grid: building grid using 11 cross sections
-> Grid: ...done.

and automatically doesn't give the outputs. Can you help me??

The setting of the suspended load block are the following

"MORPHOLOGY": {
            "BEDMATERIAL": {
              "GRAIN_CLASS": {
                "diameters": [
                  25.0
                ]
              },
              "MIXTURE": [
                {
                  "name": "uniform",
                  "volume_fraction": [
                    100.0
                  ]
                }
              ],
              "SOIL_ASSIGNMENT": {
                "index": [
                  1
                ],
                "soil": [
                  "bed"
                ],
                "type": "index_table"
              },
              "SOIL_DEF": [
                {
                  "name": "bed",
                  "LAYER": [
                    {
                      "bottom_elevation": -9.5,
                      "mixture": "uniform"
                    }
                  ]
                }
              ]
            },
            "INITIAL": {
              "type": "initial_mesh"
            },
            "PARAMETER": {
              "density": 2650.0,
              "porosity": 37.0
            },
            "SUSPENDED_LOAD": {
              "INITIAL": {
                "type": "file",
                "file": "C:/Users/OneDrive/Desktop/PhD/BASEMENT/Morpho/Suspended load.txt"
              },
              "PARAMETER": {
                "scheme": "quickest",
                "sediment_exchange": "on",
                "local_slope": "on",
                "sink_velocity_type": "vanrijn",
                "exchange_type": "concentrations"
              },
              "BOUNDARY": [
                {
                  "string": "upstream",
                  "type": "suspension_discharge",
                  "mixture": "uniform",
                  "file": "C:/Users/agati/OneDrive/Desktop/PhD/BASEMENT/Morpho/suspend_bc.txt",
                  "name": "Inlet_sus"
                },
                {
                  "string": "downstream",
                  "type": "out_down",
                  "name": "outlet_sus"

Thank you in advance.

Matthias Bürgler

Developer

From: Zürich

Registered: 2019-04-04

Posts: 175

Re: Suspended load block

Hi,

I am not sure, I understand the problem. Is there an error when you run the model? Or what do you mean with "it doesn't load the cross sections"?

Best regards,
Matthias

Rebecca_Ag

User

Registered: 2024-02-21

Posts: 12

Re: Suspended load block

Sorry i wasn't clear at all.
Basement crashes if i put in input in the suspended load block this file for the INITIAL

time:    0   
C    Mixture   
5000    0    uniform
4500.00    0.015    uniform
4000.00    0.02    uniform
3500.00    0.015    uniform
3000.00    0    uniform
2500.00    0    uniform
2000.00    0    uniform
1500.00    0    uniform
1000.00    0    uniform
500.00    0    uniform
0    0    uniform

I'm trying to reproduce the TEST CASE ST_BP_1: Advection of suspended load of the manual.

Thanks for your help,

Rebecca.