A fully Lagrangian nite element method for the analysis of Newtonian ows is developed. The approach furnishes, in e ect, a Lagrangian implementation of the compressible Navier–Stokes equations. As the ow proceeds, the mesh is maintained undistorted through continuous and adaptive remeshing of the uid mass. The principal advantage of the present approach lies in the treatment of boundary conditi...

1 Correspondence to G.M. Lingaraju, e-mail: [email protected] Summary This paper discusses real time visualisation of free surface flows that are modelled using an Arbitrary Lagrangian Eulerian (ALE) approach. To integrate the dynamic simulation with the visualization, a comprehensive yet extensible Graphical User Interface (GUI) is used. The visualization technique employed is demonstrated on ...

Thermal noise generally greatly exceeds quantum noise in optomechanical devices unless the mechanical frequency is very high or the thermodynamic temperature is very low. This paper addresses the design concept for a novel optomechanical device capable of ultrahigh quality factors in the audio frequency band with negligible thermal noise. The proposed system consists of a minimally supported mi...

Sloshing is one of challenging problem in the free surface flow, because dealing with large deformation fluid. The present paper was carried out numerical sloshing prismatic tank that resemble LNG membrane type carrier. Pressure sensor used to validate dynamic pressure low filling ratio tank. Forced oscillation motion sway f = 1.08 Hz and amplitude 6.52 mm. A single, double vertical baffles are...

this study investigates natural frequency analysis of an fg composite rectangular plate partially contacting with a bounded fluid. the material properties are assumed to be varying continuously through the thickness direction according to a simple power law distribution in terms of volume fraction of material constituents. wet dynamic transverse displacements of the plate are approximated by a ...

The lowest swirling wave mode arising in upright circular cylinders as a response to orbital excitation has been widely studied the last decade, largely due its high practical relevance for orbitally shaken bioreactors. Our recent theoretical study (Horstmann et al. , J. Fluid Mech. vol. 891, 2020, A22) revealed damping-induced symmetry breaking mechanism that can cause spiral structures manife...