Search found 4827 matches

by Jirka
Wed Nov 20, 2019 6:27 pm
Forum: Hydrus 1D
Topic: Solute fluxes calculated from obs points
Replies: 2
Views: 381

Re: Solute fluxes calculated from obs points

At the end of the Solute.out file you get solute fluxes for top 3 observation nodes. If you have four observation nodes, then you do not get the info for the last one. While cvBot and Sum(cvBot) reports total solute fluxes, the observation node fluxes, i.e., cv and Sum(cv) are only convective fluxes...
by Jirka
Tue Nov 19, 2019 11:37 pm
Forum: Hydrus 1D
Topic: Errors in solute when surface layer BC is applied
Replies: 5
Views: 589

Re: Errors in solute when surface layer BC is applied

I may have done some minor modifications, which I do not recall. Simply compare the two projects to find out. J.
by Jirka
Tue Nov 19, 2019 6:25 pm
Forum: Hydrus 1D
Topic: Errors in solute when surface layer BC is applied
Replies: 5
Views: 589

Re: Errors in solute when surface layer BC is applied

I do not see any problem. Jl
by Jirka
Tue Nov 19, 2019 3:24 pm
Forum: HYDRUS (2D/3D)
Topic: Simulating Root Water Uptake with Root Growth model using Hydrus 2D
Replies: 9
Views: 912

Re: Simulating Root Water Uptake with Root Growth model using Hydrus 2D

Currently, there is not. I do not have time for that. One could perhaps hardcode something for this specific geometry, but I do not see myself coding something for general geometries. Note that you can manually edit the Domain.dat (a text file of the binary Domain.in file) file externally, using, e....
by Jirka
Tue Nov 19, 2019 1:49 am
Forum: Hydrus 1D
Topic: Errors in solute when surface layer BC is applied
Replies: 5
Views: 589

Re: Errors in solute when surface layer BC is applied

Not without seeing the project. J.
by Jirka
Mon Nov 18, 2019 11:27 pm
Forum: HYDRUS (2D/3D)
Topic: Simulating Root Water Uptake with Root Growth model using Hydrus 2D
Replies: 9
Views: 912

Re: Simulating Root Water Uptake with Root Growth model using Hydrus 2D

The root growth module with multiple plants has not been intended to work on sloped surfaces. That's something that would have to be developed as a new option. J.
by Jirka
Mon Nov 18, 2019 8:53 pm
Forum: HYDRUS (2D/3D)
Topic: Simulating Root Water Uptake with Root Growth model using Hydrus 2D
Replies: 9
Views: 912

Re: Simulating Root Water Uptake with Root Growth model using Hydrus 2D

If you click with the right-mouse button on the HYDRUS icon, you get a pop up menu. From this pop-up menu select "Properties". Under the Tab "Shortcut" you can see the fields "Target and "Start In". These fields give you the path where HYDRUS (the program itself, not its projects) is installed. You ...
by Jirka
Sat Nov 16, 2019 5:17 pm
Forum: HP1 (HYDRUS-1D - PHREEQC)
Topic: How should i enter our data in HP1
Replies: 3
Views: 630

Re: How should i enter our data in HP1

HP1, contrary to the standard HYDRUS-1D module, does not have an inverse option, and thus you cannot enter measured concentrations. If you want to calibrate the HP1 module, you need to do it externally, e.g., using MATLAB, Python, or some specialized calibration software such as UCode or Pest. See a...
by Jirka
Fri Nov 15, 2019 5:46 am
Forum: HYDRUS (2D/3D)
Topic: Simulating Root Water Uptake with Root Growth model using Hydrus 2D
Replies: 9
Views: 912

Re: Simulating Root Water Uptake with Root Growth model using Hydrus 2D

I think I have found where the problem was. Please test the two attached exe files (replaced them in the folder where HYDRUS is installed). Thanks. Jirka
by Jirka
Fri Nov 15, 2019 5:06 am
Forum: HYDRUS (2D/3D)
Topic: failed in calibration of HYDRUS-2D 64bit
Replies: 4
Views: 441

Re: failed in calibration of HYDRUS-2D 64bit

This is something that depends on your experimental conditions. We cannot help you with that. Note that there are Technical and User Manuals. J.
by Jirka
Tue Nov 12, 2019 5:10 am
Forum: Hydrus 1D
Topic: Capillary rise model
Replies: 1
Views: 416

Re: Capillary rise model

This is a very simple problem to simulate. I think you should try to do the HYDRUS-1D tutorials, which are posted at the HYDRUS-1D website to understand how the model works. You should have no problem to simulate your experiment after that. J.
by Jirka
Tue Nov 12, 2019 5:01 am
Forum: HYDRUS (2D/3D)
Topic: Mesh Lines and confirming cumulative boundary flux rates
Replies: 15
Views: 1334

Re: Mesh Lines and confirming cumulative boundary flux rates

I do not see why that would be a problem. If you reverse the points defining the meshline, you change the sign (although I do not see why you would do that). J.
by Jirka
Mon Nov 11, 2019 8:56 pm
Forum: HYDRUS (2D/3D)
Topic: Mesh Lines and confirming cumulative boundary flux rates
Replies: 15
Views: 1334

Re: Mesh Lines and confirming cumulative boundary flux rates

Meshlines are oriented depending on how you define them. The fluxes should be the same and independent of orientation except for the sign (+/-). J.
by Jirka
Fri Nov 08, 2019 2:23 pm
Forum: HYDRUS (2D/3D)
Topic: failed in calibration of HYDRUS-2D 64bit
Replies: 4
Views: 441

Re: failed in calibration of HYDRUS-2D 64bit

You can find average values of soil hydraulic parameters for different textural classes in the Soil Catalog, which is based on the paper of Carsel and Parrish (1988), as well as in the Pedotransfer Module Rosetta of Marcel Schaap. Both are incorporated into HYDRUS. Jirka
by Jirka
Thu Nov 07, 2019 7:29 pm
Forum: HYDRUS (2D/3D)
Topic: Simulating Root Water Uptake with Root Growth model using Hydrus 2D
Replies: 9
Views: 912

Re: Simulating Root Water Uptake with Root Growth model using Hydrus 2D

Indeed, the code currently can consider root growth only when considering both vertical and horizontal growth (with specified horizontal locations), and it cannot consider only vertical growth (without horizontal growth). I will have to look at it, and update the code to allow such option, when I ha...