Silverbrook

Hi,

I have a large model that converges, but it is not converging to the desired degree of accuracy. Is there a way to determine which areas of the model may be causing problems?

Thanks,

SB

When exporting Kx values (for example) by this method:

Special -> Conductivity [Kxx] -> Save nodal materials as [b]points[/b] - > choosing file type to be shape file.

The parameter values are limited to 8 decimal places. If I export using .pnt or .dat files the decimal places are limited to 10. Is this an inherent limitation of the file types or is there a way to work around this problem? The level of precision for very low conductivity regions is lost when exporting using this method.

Thanks,

SB

Thanks. That works!

[quote author=Peter Schätzl link=topic=807.msg1968#msg1968 date=1275458243]
SB,

you would need two files for the import:
1. A pow file with all the time series
2. Another file (trp, shp, ...) with the coordinates of the wells and the corresponding time-series (powerfunction) ID.
First import the time-series (powerfunctions). The import of the wells then can be done with Assign - Database - Import powerfunction ID - Well BC - Automatic (FEFLOW 5.4) or by linking the loaded map file (trp, shp, ...) to the well boundary condition and applying the 'Neighborhood Relationship' regionalization.
Please note that in FEFLOW 5.4 you should not have more than one well in the vicinity of the same node. At import, you would get the pumping rate only of the last well imported. In FEFLOW 6.0 using the Neighborhood Relationship, you can choose to sum the pumping rates of all neighboring well onto the closest mesh node.

BR
Peter
[/quote]

Hi,

I am using Feflow 5.4 and I need to import many wells (100+) all of which have time varying IDs associated with them. Is there any way to do this in one go? i.e. a importing a correctly formated .pow file? The IDs are already imported, but I have the raw pump data if that is necessary.

Thanks,

SB

I used the Fluid Flux Analyzer for a transient model and it presents me with three graphs (integral flux inside, outside, and in - out). Is there any way to export the data for use in another program? I wish to replot the graphs in Excel.

Thanks,

SB

I have figured out that assigning transient recharge to two non-contiguous polygons seems to result in the second polygon not actually being assigned the recharge values. For whatever reason, probably the way in which I am trying to enter the data, I can work around this by creating two seperate polygons and applying the recharge seperately.

I still have a slight problem with long term heads in a transient model. The model has identical total annual recharge as the steady state mode, except it is applied in a seasonal pattern i.e. high winter rainfall and low summer. For some reason, the model drops below the st.st heads by about 0.25m during the first few years, then as the model continues (20+ years) the heads tend towards values ~0.25m above the st.st. values. I cannot think of an explanation for this!