Michael Heisel¹, Charitha M de Silva², Nicholas Hutchins³, Ivan Marusic³, Jiarong Hong¹, Filippo Coletti¹ and Michele Guala¹, (1)University of Minnesota, St. Anthony Falls Laboratory, Minneapolis, MN, United States, (2)University of New South Wales, School of Mechanical and Manufacturing Engineering, Sydney, Australia, (3)University of Melbourne, Department of Mechanical Engineering, Melbourne, Australia