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Showing results for tags 'modpath'.
I have a one grid layer steady state modflow model in gms 10 . When I put one particle at a distance of 100 meters away from the intake well, it entered the well in 70 days with default porosity value of 0.3. Material K value is 0.002 m/s. Then I changed the porosity value to value 0.01 and after running modflow again, GMS informs that particle enters the well in two and a half days. I"m "confused", when there is less amount of effective pores available for ground water to move then GMS tells that water moves faster (from one place to other) ?
I am running a transient MODFLOW scenario using the NWT solver with UPW. We are doing significant dewatering in this scenario and the water is drawn down through several layers (necessary due to geology). The MODPATh model will run for a while and then crash due to "cell thickness is negative in" some cell. I believe particles are entering cells where the CHD and NWT have the water table below the bottom of the cell which is causing MODPATH to crash. Is there any way to fix this? I already have MOODFLOW outputting head at the end of every timestep and the IPHDRY set to a positive number.
Hi, When I try to add particles using MODPATH to any model, GMS crashes without any warning or error message. I've tried with several different models, both complex and simple (all in SS), but nothing seems to work. Any idea what is causing this or how I should proceed to fix it? Thanks in advance.