about pulse duration

[solo]

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.

[Jirka]

“Pulse Duration” represents “time” for how long the solute was applied. The solute mass entering the transport domain is equal to “Water Flux*concentration*pulse duration”. J.

[solo]

Dear Sir,
Thanks for your reply.