DuhamelÕs theorem

Effects of variable wind speed and direction on radon transport from soil into buildings: model development and exploratory results

Submitted by on Sun, 10/27/2013 - 00:29

We describe a novel modeling technique, based on Duhamel's theorem, to study the effects of time-varying winds on radon transport in soil near buildings. The technique, implemented in the model RapidSTART, reduces computational times for transient, three-dimensional, wind-induced soil-gas and radon transport by three to four orders of magnitude compared with conventional finite-dierence models.