PC-Progress Discussion Forums

[ Home | Hydrus | Services | FAQ | Tutorial | News | Reviews | Downloads ]

PC-Progress Discussion Forums
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

Please read

HYDRUS news

Welcome to our discussion forums. The purpose of these forums is to provide help and technical support to Hydrus2D/Meshgen2D users. This service is provided for free and therefore we can't guarantee that all questions will be answered and/or how long time it will take. We do offer additional customer support and other services - for more information visit the Hydrus Services page. If you want to contribute to these discussion forums you must be registered. Registration is free and very simple - just click Register and fill the registration form. We recommend you to provide your full name, affiliations, address, and, especially in the HYDRUS (2D/3D) forum, the name of the company/institution that purchased the Hydrus/Meshgen program. Questions from fully registered members will be answered with higher priority than other questions. Questions from anonymous users will have lower priority.

There is an option that allows you to get automated e-mail notifications about new posting to a specific topic or about all new contributions. Please login and then click on the "Subscribe to this forum" or "Subscribe to this topic" icon. (These icons are not visible if you are not logged on)

 All Forums
 PC-Progress Discussion Forums
 Hydrus 2D (old version 1996 - 2005)
 set slope of tank model
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

Srilert
Advanced Member

Thailand
95 Posts

Posted - 08/19/2005 :  04:41:12  Show Profile  Reply with Quote
Dear Jirka,
I have problem how should i do ? when i want to set slope of tank model(hydraulic gradient). I mean i create tank model (unsaturated-saturated model) for studying movement of heavy metal when it leak from the containment from topsoil to groundwater and i want to set groundwater flow have a slope 0.001. How can i set in this sloope of groundwater flow(hydraulic gradient) in this model? This set up model similar as example 7 in manual but in this example has constant water level but in my set up model i want to change it have slope of groundwater flow (hydraulic gradient)
I 'm new users pls. advice me.
And I have another 1
question that is Kd is the same value in unsaturated and saturated zone ? I 'm not sure in theory .
And any suggestion, you can advice me.
Regards,
Srilert


lert

Jirka
Moderator

USA
1763 Posts

Posted - 09/08/2005 :  16:58:16  Show Profile  Visit Jirka's Homepage  Reply with Quote
Lert,

In the boundary module you need to specify initial condition (pressure heads) at a slope of 0.001. Then you need to fix the pressure head (constant head boundary condition) at both sides.
Kd should be the same in the unsaturated and saturated zone (I think). This is because the wetted surface area is the same in the unsaturated and saturated zone (there is always some small film of water at soil surface).
J.
Go to Top of Page

rvang
Moderator

USA
45 Posts

Posted - 09/08/2005 :  17:48:06  Show Profile  Visit rvang's Homepage  Reply with Quote
Yes, the Kd (equilibrium Kd) is independent of water content (saturated, unsaturated, ...).--Rien.

Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
PC-Progress Discussion Forums © 2007 PC-Progress s.r.o. Go To Top Of Page
Powered By: Snitz Forums 2000 Version 3.4.06