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Damping of drop oscillations by surfactants and surface viscosity
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nadim, Ali Rush, Brian M. |
| Copyright Year | 1999 |
| Description | An energy equation is derived for the general case of a viscous drop suspended in a viscous medium with surfactants contaminating the interface. It contains terms that clearly identify dissipation contributions from the viscous effects in the bulk fluids, surface shear and dilatational viscosity effects at the interface, and surfactant transport. An efficient boundary integral method is developed which incorporates the effects of a constant surface dilatational viscosity in simulations of an oscillating two-dimensional inviscid drop. Surface dilatational viscosity is shown to have a significant damping effect on the otherwise undamped inviscid oscillations. |
| File Size | 383653 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20010004384 |
| Archival Resource Key | ark:/13960/t52g2nz75 |
| Language | English |
| Publisher Date | 1999-03-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Thermodynamics Damping Oscillating Flow Viscosity Bubbles Rheology Undamped Oscillations Reynolds Number Surface Properties Boundary Integral Method Surfactants Drops Liquids Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
