Question for particle tracking

[l20000719]

Dear dfnWorks developers,

Greetings. I have successfully utilized dfnWorks to create a simulation domain with dimensions of 100m x 100m x 100m, generating five sets of fracture networks. Additionally, I've placed a vertical well parallel to the z-axis at the coordinates (0m, 40m, 0m) with a length of 50m and a radius of 4m.

To ensure fractures can cross the well, I've implemented a Python while loop iterating through different seed values. I conducted a fluid flow simulation based on specified boundary conditions in dfn_pressure.in. The pressure is set to 5.001MPa at the y=50m plane and 5MPa at the y=-50m plane.

For particle tracking, I used Python to write data from well_inject.zone into allboundaries.zone, modifying the index to 7. This setup treats the well zone as an inflow boundary in PTDFN_control.dat, with the outflow boundary set as 6 (back_n). Please refer to the attached file (my_DFNcase.zip) for more details.

My question concerns PTDFN_control.dat, which provides 7 options. Although I chose "Option 7. Particles start from in-flow zone nodes positions," I aim for functionality similar to "Option 3." Specifically, I want to release a total of n particles in a specific region (e.g., releasing 3000 particles from the injection well).

I tried "Option 3" and set the region (-4 < x < 4, -36 < y < 44, 0 < z < 50), but result showed no fractures crossed the region and dfnTran wasn't complete, and the code exited. Is there a method to fulfill this requirement, or have I made any mistakes in my configuration?

Best regards,

my_DFNcase.zip