Search found 9 matches

by solo
Fri Nov 14, 2014 8:48 am
Forum: HYDRUS (2D/3D)
Topic: About heat parameters
Replies: 1
Views: 3092

About heat parameters

Dear Sir, When I use heat transport model,I can not understand the default volumetric heat capacity,such as Cs=69120000,Cw=150480000,how do you definite this value. In some articles the value is Cs=1920000,Cw=4180000.So I confused which one should I use in my project. And Cs=ρs×c,in the software,doe...
by solo
Mon Oct 27, 2014 9:35 am
Forum: HYDRUS (2D/3D)
Topic: About cumulative flux
Replies: 0
Views: 3243

About cumulative flux

Dear Sir, When I simulate water transport ,the two projects have the same boundry conditions and initial condition,but the results are different.In one project,the inflow boundry cumulative flux is half of the outflow boundry cumulative flux.There only two boundrys in the project.In another project,...
by solo
Thu Oct 23, 2014 11:35 am
Forum: HYDRUS (2D/3D)
Topic: About nadal recharge
Replies: 5
Views: 5730

Re: About nadal recharge

Dear Sir, It does not involves gravity.The box is thin and just a horizontal plane about 50cm*40cm.I am simulating horizontal heat flow.The heat lost take places on the surface of the box.In the heat transport model ,I can only set temperature boundry on water flow boundry.The heat lost surface is n...
by solo
Thu Oct 23, 2014 1:28 am
Forum: HYDRUS (2D/3D)
Topic: About nadal recharge
Replies: 5
Views: 5730

Re: About nadal recharge

Dear sir, Thank for your reply.But I have a few questions. 1.In two-dimensional model,I use horizontal plane of XY to simulate my experiment .But the heat lost is produced on the Z-axis direction.So I want to set nodal recharge in internal nodes to express this part of heat lose.Do you think it is r...
by solo
Wed Oct 22, 2014 9:01 am
Forum: HYDRUS (2D/3D)
Topic: About nadal recharge
Replies: 5
Views: 5730

About nadal recharge

Dear Sir, I am doing an experiment about using heat as tracer to estimate the hydraulic parameters of saturated porous media.I use a sandy box to set a two-dimensional model. The surface of the sandy box is no-flux boundry which has a large heat lost. So I want to use nodal recharge to express the p...
by solo
Mon Sep 22, 2014 9:37 am
Forum: HYDRUS (2D/3D)
Topic: inverse problem about temperature
Replies: 1
Views: 2670

inverse problem about temperature

Dear sir, I am doing an experiment about using heat as tracer to estimate the hydraulic parameters of saturated porous media(Quartz sand).When I use the measured temperature data in inverse modeling,simulated values can fit well with the measured data.But ,the estimated parameters is small than actu...
by solo
Mon Jul 14, 2014 8:33 am
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: about pulse duration
Replies: 2
Views: 5454

Re: about pulse duration

Dear Sir,
Thanks for your reply.
by solo
Mon Jul 14, 2014 8:32 am
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: inverse problem about temperature
Replies: 1
Views: 12741

inverse problem about temperature

Dear sir,
About inverse problem,can I use temperature dates to estimate hydraulic parameters with Hydrus 2D (old version 1996 - 2005)?
by solo
Fri Jul 11, 2014 7:02 am
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: about pulse duration
Replies: 2
Views: 5454

about pulse duration

Dear Sir
I have a question about solute transport. If I had inject a certain concentration solution, then supply water at a constant head .How to set the pulse duration ?
Thanks.