Dear Justin how can ultrasonic sound wave be introduced in simulation using Gromacs.? i am looking forward to hear from you Best Regards _Arsalan Aghaei_ _ PhD Student in Biophysics_ _ Institute of Biochemistry and Biophysics_ _ University of Tehran_ _ www.ibb.ut.ac.ir [1]_ Links: ------ [1] http://www.ibb.ut.ac.ir/