RESPONSE OF AN ANCHORED VISCOUS-LIQUID LAYER TO AXIAL EXCITATION IN ZERO-GRAVITY

The respose of a viscous liquid layer around a center-core to axial excitation has been determined analytically. At the rim of the top- mid the bottom disc of the liquid column the liquid is anchored (stuck-edge). The damped natural axisymmetric frequencies, the response of the free liquid surface elevation, the radical- and axial velocity distribution have been presented for various surface tension parameters sigma a/rho nu(2), aspect ratios h/a and at various locations inside and along the liquid bridge as functions of the forcing frequency parameter Omega a(2)/nu. It could be noticed that due to viscosity the resonance amplitudes are finite and that the lowest resonance is sharply tuned.