TY - JOUR
T1 - Director libration in nematoacoustics
AU - De Matteis, Giovanni
AU - Virga, Epifanio
PY - 2011
Y1 - 2011
N2 - We extended the analysis of a variational theory for nematoacoustics recently proposed by Virga [Phys. Rev. E 80, 031705 (2009)] by allowing the nematic director to vibrate about an average orientation at the frequency of a propagating wave, a periodic motion that we call the director libration. The acoustic susceptibilities, two phenomenological parameters that, in this theory, express the coupling between director and acoustic fields, are estimated along with an extra viscosity coefficient by using available experimental data.
AB - We extended the analysis of a variational theory for nematoacoustics recently proposed by Virga [Phys. Rev. E 80, 031705 (2009)] by allowing the nematic director to vibrate about an average orientation at the frequency of a propagating wave, a periodic motion that we call the director libration. The acoustic susceptibilities, two phenomenological parameters that, in this theory, express the coupling between director and acoustic fields, are estimated along with an extra viscosity coefficient by using available experimental data.
UR - https://www.scopus.com/pages/publications/78751538882
U2 - 10.1103/PhysRevE.83.011703
DO - 10.1103/PhysRevE.83.011703
M3 - Article
SN - 1539-3755
SN - 1550-2376
SN - 2470-0045
SN - 2470-0053
VL - 83
SP - 011703
JO - Physical Review E
JF - Physical Review E
IS - 1
ER -