Search found 16 matches

by David Radcliffe
Mon Feb 04, 2019 4:49 pm
Forum: HYDRUS (2D/3D)
Topic: nodal discharge solute
Replies: 6
Views: 82

Re: nodal discharge solute

Sorry, just figured out that "rar" is a compressed folder.
by David Radcliffe
Mon Feb 04, 2019 1:41 pm
Forum: HYDRUS (2D/3D)
Topic: nodal discharge solute
Replies: 6
Views: 82

Re: nodal discharge solute

Should I change the extension from "rar" to "h3d"?
by David Radcliffe
Sat Feb 02, 2019 4:15 pm
Forum: HYDRUS (2D/3D)
Topic: nodal discharge solute
Replies: 6
Views: 82

Re: nodal discharge solute

Patagonia!! Last time I sent you a question you on the beach in Portugal (with your computer).

I tried cwell but that did not do the trick. I set up a really simple model to test it. Not sure if there is a way for me to send it to you (in Patagonia or wherever).
by David Radcliffe
Fri Feb 01, 2019 1:35 pm
Forum: HYDRUS (2D/3D)
Topic: nodal discharge solute
Replies: 6
Views: 82

nodal discharge solute

I am trying to figure out how to assign a solute concentration to a nodal discharge point. The help file seems to say that it would go in cvalue3, but that does not do it. I have a constant solute concentration, I'm doing a N chain model, and the nodes represent ammonium concentrations in a septic s...
by David Radcliffe
Thu Jan 17, 2019 2:06 pm
Forum: HYDRUS (2D/3D)
Topic: Walker equation and nitrification
Replies: 6
Views: 142

Re: Walker equation and nitrification

Thanks again.
by David Radcliffe
Tue Jan 15, 2019 2:47 pm
Forum: HYDRUS (2D/3D)
Topic: Walker equation and nitrification
Replies: 6
Views: 142

Re: Walker equation and nitrification

Oops, when I use a negative exponent I get an error:

"Floating Point Error! Calculation unstable.
Please check out input data..."
by David Radcliffe
Sun Jan 13, 2019 2:25 pm
Forum: HYDRUS (2D/3D)
Topic: Walker equation and nitrification
Replies: 6
Views: 142

Re: Walker equation and nitrification

Perfect! Thanks so much.
by David Radcliffe
Mon Jan 07, 2019 2:46 pm
Forum: HYDRUS (2D/3D)
Topic: Walker equation and nitrification
Replies: 6
Views: 142

Walker equation and nitrification

I am working on a nitrogen chain model. I am using the Walker equation for water content dependence for denitrification (ramps up as water content approaches saturation). I would like to use the Walker equation for nitrification. Is there a way to manipulate the equation parameters so that it ramps ...
by David Radcliffe
Tue Oct 23, 2018 1:10 pm
Forum: HYDRUS (2D/3D)
Topic: Video with Windows 10
Replies: 3
Views: 350

Re: Video with Windows 10

Works like a charm! Thanks so much.
by David Radcliffe
Mon Oct 22, 2018 2:14 pm
Forum: HYDRUS (2D/3D)
Topic: Video with Windows 10
Replies: 3
Views: 350

Video with Windows 10

I'm running Windows 10 and when I try to make and animation, depending on which type of video I choose, I get one of the following messages that says Can't play. This item was encoded in a format that's not supported. or Can't play. Something went wrong. Try restarting the app, etc. Anyone else have...
by David Radcliffe
Wed Feb 22, 2017 1:59 pm
Forum: HYDRUS (2D/3D)
Topic: Flowing particles
Replies: 3
Views: 1446

Re: Flowing particles

Thank you!
by David Radcliffe
Wed Feb 22, 2017 1:27 pm
Forum: HYDRUS (2D/3D)
Topic: Flowing particles
Replies: 3
Views: 1446

Flowing particles

I don't understand how to see the results of flowing particles (positions and trajectories). I have seen the post that the furrow example (2D tests) has particle tracking, I can see the initial position of the particles, but I don't know how to look at the results. Thanks for your help.
by David Radcliffe
Fri Dec 13, 2013 3:14 pm
Forum: Soil Physics with Hydrus
Topic: Potential error in 5.14
Replies: 1
Views: 24010

Re: Potential error in 5.14

Your are correct. We will post a new item in the Book Errata. Thanks for noting this.
by David Radcliffe
Tue Feb 28, 2012 3:54 pm
Forum: Soil Physics with Hydrus
Topic: Answers to the "problem" sections of each chapter?
Replies: 2
Views: 5746

But we think your idea to post the answers (without the solutions) is a good idea so we will post them shortly. Thanks!
by David Radcliffe
Fri Jan 13, 2012 4:02 pm
Forum: Soil Physics with Hydrus
Topic: Heat Transport Example p. 161
Replies: 5
Views: 8933

You are correct that the heat parameters used in the book are different. This point covered in the item for page 176 in the textbook errata on the book website at http://pc-progress.com/en/Default.aspx?h3d-book. This item says "If problem 7 is run as described in the text, the temperatures in the gr...