feflower

Hi,
I just wanted to know if it is possible to run simulation on two different CPU together. Like breaking the simulation in two parts to save time. As my 3d model is taking almost 2 days to run whole simualtion.

Thanks

Thanks Björn and Christian for your useful replies.

Regards.

Thanks Peter,
Actually we don't have much information about the infiltration from river. Based on water level, we decided to use it as a 1st type boundary condition.
If it is possible to use different type of BCs in this scenario.

Hi everyone,

I have seen that this question has been already discussed, but I am also getting the same problem.
I am doing a mass transport for unsaturated and saturated zone. Before doing mass transport, I wanted to calibrate the flow. But every time my simulated hydraulic heads are higher than actual values.
My model is:  In unsaturated zone, I have 7 layers, while saturated zone have 3 layers. In layer 1 of saturated zone, I have 20 observation wells and also a river (1st kind BC). I am running this model for 60 years and have observed hydraulic head for two years.
When I started to calibrate the model, computed heads are too high (about 6 to 8 m). I tried to reduce the flux from boundaries, but it's not effecting a lot, then as a second step, I tried to increase the hydraulic conductivity for saturated zone, it is working but still I have a high error.
Now I am concern about the source of this error ? Do I need to play hydraulic conductivity of unsaturated zone also?

Or I need to change BCs for river ?

Hi everyone,

I am trying to model a contaminated site and simulate groundwater flow with feflow 6.1 for 60 years (1950-2010). It's a model with both unsaturated and saturated zone.
I have run the model for groundwater flow. Now I want to calibrate this.
I have 20 observation wells and hydraulic head for 1980 and 1990. I want to calibrate the calculated hydraulic head for this time.
I tried to read the values of calculated heads from Hydraulic-head chart plot. But as it is a very big number of simulation time, It's not very clear. Also, I want to see the scatter plot between actual and calculated heads.

Could anyone please suggest me how can I do this?


Thanks :)

Thanks Björn Kaiser for your replies.  :)

Hi,

How can I introduce faults in one layer using feflow 6.1. I tried to go through discrete features, but it is not very much clear. Could ayone please give some suggestions.

Hi everyone,

I am making a 3D model with unsaturated and saturated zone in feflow 6.1. In unsaturated zone, I have 7 layers, while saturated zone have 3 layers.
Unsaturated zone: (sand, sandy loam, loamy sand,clay, sand+ gravels, gravels, boulders). I want to define van-genuchten parameters for each layer of unsaturated zone. But I don't have any idea about fitting coefficent and fitting parameres for gravels and gravels+boulders. Could anyone please suggest me what is the optimum value of these parameters or refer me to any literature.

Thanks :) 

Hi everyone,
I am making a 3D model for groundwater flow. In the last slice, I have bedrock and I want to introduce a fault in that slice. Thickness of fault is about 1km.
Do I need to put is like a discrete feature, If yes...then how can I put this?
Or is there any way that I can divide that slice in three parts: 1) low hydraulic conductivity, 2) High hydraulic conductivity (for fault) and 3) Again low.

Any suggestion would be appriciated.

Thanks in advance..

Hey everyone,
I am very new to feflow. I want to assign some wells into different slices in my 3D model. I make 6 layers and 7 slices. upto Layers 3 is unsaturated, layers 4-5 are saturated, while 7 is bedrock.
I want to assign well BC for layer 4 and 5, as my all wells are located in this zone.
Thanks in advance.