## Search found 21 matches

Mon Sep 28, 2020 12:27 pm
Forum: HYDRUS (2D/3D)
Topic: axially symmetric domain
Replies: 4
Views: 33

### Re: axially symmetric domain

Sat Sep 26, 2020 10:25 pm
Forum: HYDRUS (2D/3D)
Topic: axially symmetric domain
Replies: 4
Views: 33

### Re: axially symmetric domain

sorry for the confusion No the emitter is not a circular drip line with a radius of 1.5m the emitter is rectanglaire (15cm *10cm) and it is far from the trunc 1.5m I worked with a symmetry domain based on the trunc (because roots are symetric around the trunc ) in the field there is two emiiter at t...
Sat Sep 26, 2020 11:10 am
Forum: HYDRUS (2D/3D)
Topic: axially symmetric domain
Replies: 4
Views: 33

### axially symmetric domain

Hi jirka I'm working with hydrus 2D/3D for water flow and solute transport under subsurface irrigation The geometry of my domain was considered as an axially symmetric domain based on crop roots symmetry distribution around the trunk. so in my case The domain was set as a rectangle (in a radial dire...
Wed Jul 22, 2020 2:29 pm
Forum: HYDRUS (2D/3D)
Topic: root zone pressure head interpretation
Replies: 1
Views: 619

### root zone pressure head interpretation

I'm always working with Hydrus 2D/3D to simulate the root water uptake under farmer irrigation (inedequate irrigation monitoring) (date palm as crop) the root water uptake parameters used are : P2H= -5m /P2L =-8m ( deciduous Fruit in hydrus catalogue) In the results I found that the root water uptak...
Wed Jun 17, 2020 1:17 pm
Forum: HYDRUS (2D/3D)
Topic: water balance
Replies: 3
Views: 553

### Re: water balance

So I should work with the masse balance information out-put file.
Sun Jun 14, 2020 9:54 am
Forum: HYDRUS (2D/3D)
Topic: water balance
Replies: 3
Views: 553

### water balance

Dear Jirka I'm using Hydrus 2D/3D version 3.02 I'm modelling water flow and solute transport under irrigation . the simulation periode is 271 day , the irrigation is a rotation between a flood irrigation and subsurface irrigation for this end I selected VARflux2 for subsurface irrigation and c2 for ...
Fri Nov 22, 2019 2:31 pm
Forum: HYDRUS (2D/3D)
Topic: BC. options in Hydrus 2D/3D version 1.10
Replies: 2
Views: 1381

### Re: BC. options in Hydrus 2D/3D version 1.10

ok thank you for your response
Wed Nov 20, 2019 1:53 pm
Forum: HYDRUS (2D/3D)
Topic: BC. options in Hydrus 2D/3D version 1.10
Replies: 2
Views: 1381

### BC. options in Hydrus 2D/3D version 1.10

Dear Jirka I'm working with Hydrus 2D/3D version 1.10 I'm solving water flow problem under surface irrigation (like flood irrigation ) the irrigation is applied two time per week , so during irrigation I have atmosperic BC and variable flux BC at the same time my question : Should I work with variab...
Mon Nov 04, 2019 3:53 pm
Forum: HYDRUS (2D/3D)
Topic: Solute transport and sub-surface irrigation
Replies: 5
Views: 1565

### Re: Solute transport and sub-surface irrigation

thank you for your response it was very helpful and I solved the problem however now I'm facing a new problem I'm using Hydrus 2D/3D to simulate water flow and solute transport problem under irrigation. the irrigation method used in this work is subsurface drip irrigation and surface submersion irri...
Thu Sep 26, 2019 10:34 am
Forum: HYDRUS (2D/3D)
Topic: Solute transport and sub-surface irrigation
Replies: 5
Views: 1565

### Re: Solute transport and sub-surface irrigation

thank you for your response , yes in my case I have an atmospheric BC in fact the irrigation monitoring was done based on "farmer field scheduling" and they use alternative irrigation ( once they irrigate with traditional method " flood irrigation" and once they use subsurface drip irrigation). So i...
Wed Sep 25, 2019 3:12 pm
Forum: HYDRUS (2D/3D)
Topic: Solute transport and sub-surface irrigation
Replies: 5
Views: 1565

### Solute transport and sub-surface irrigation

Hi I'm working with Hydrus 2D/3D , I want to simulate water flow and solute transport under sub-surface irrigation for data palm trees. my question is about the solute concentration I worked with VarFlux1 for irrigation ( since it is subsurface irrigation) and for solute concentration shoud I put it...
Tue Feb 26, 2019 5:33 pm
Forum: HYDRUS (2D/3D)
Topic: Root distribution /root water uptake
Replies: 4
Views: 1211

### Re: Root distribution /root water uptake

Tue Feb 26, 2019 5:06 pm
Forum: HYDRUS (2D/3D)
Topic: Root distribution /root water uptake
Replies: 4
Views: 1211

### Re: Root distribution /root water uptake

dear Jirka thank you for your reply in fact, I work on data-palm trees; and in the hydrus database for the solute stress model, I can not find it; even I can not find the deciduous fruit. so it is correct to calibrate the water flow with inverse model (with out considering the solute stress model I ...
Tue Feb 26, 2019 4:21 pm
Forum: HYDRUS (2D/3D)
Topic: Root distribution /root water uptake
Replies: 4
Views: 1211

### Root distribution /root water uptake

dear Jrika I'm working with Hydrus 2D/3D version and I'm little confused about the scale of the root water uptake in the domain properties that means the density of roots or what exactly ? In my case I'm trying to calibrate the water flow under sub-surface drip irrigation with the inverse method and...
Thu Oct 18, 2018 10:03 am
Forum: Hydrus 1D
Topic: evaporation
Replies: 2
Views: 1095

### Re: evaporation

thank you for your answer, in the second paragraph I said that the model don't reproduce the same fluctuation of solute transport as the observed data under irrigation