Dynamics of freely suspended films with surface tensionYatin Marathe1 et Sriram Ramaswamy1, 2
1 Department of Physics, Indian Institute of Science, Bangalore 560 012, India
2 Centre for Theoretical Studies, Indian Institute of Science, Bangalore 560 012, India
We have studied the hydrodynamics of freely suspended membranes, liquid as well as crystalline, with surface tension. We find that nonlinear coupling to thermally excited undulations gives a singular contribution to the kinetic coefficients of these systems at low frequency and wavenumber. Our results differ in some important respects from those of Katz and Lebedev on this problem, and can be tested in mechanical impedance as well as time-correlation studies.
6815 - Liquid thin films.
6860B - Mechanical and acoustical properties.
elasticity -- hydrodynamics -- liquid films -- membranes -- surface tension