Inquiry about the Extra Cell in PetraSim

[Zhou Lang]

Hello, everyone,

I am confused by the statement on Dist. This and Dist. To in PetraSim 5 User Manual. It was stated that in Page 53:

"Dist. This: The distance of the connection in the extra cell. See TOUGH concepts "Spatial Discretization."
Dist. To: The distance of the connection in the connecting cell."

Does they meam that Dist. This is the distance between the connection interface and centroid of the extra cell; and Dist. To is the distance between the connection interface and centroid of the connecting cell ?

[Alison]

You are correct, "Dist. to" is the distance between the center of the connecting (geometric) cell and the connection to the extra cell. Dist. This is the distance of the connection in the extra cell. Depending on what you are trying to represent with an extra cell, these distances could be very large (for example, if you are trying to represent the atmosphere) or very small (for example, if you are trying to represent a well bore).

[Zhou Lang]

Dear Alison,

Thank you very much for your helpful reply.

Best regards,

Lang