Coarse‐grained description of thermo‐capillary flow

Fundamental effects in nanoscale thermocapillary flow

Thermocapillary Flow Near a Cold Wall

The thermocapillary feedback mechanism important at the edge of weld pools and other materials processes is examined through a model problem A pool of liquid with a at horizontal free surface is bounded on one side by a vertical solid wall which is maintained at a cold temperature to unit depth and at a warmer temperature below far away the uid is at the warmer temperature Surface tension is a ...

Thermocapillary actuation of liquid flow on chemically patterned surfaces

We have investigated the thermocapillary flow of a Newtonian liquid on hydrophilic microstripes which are lithographically defined on a hydrophobic surface. The speed of the microstreams is studied as a function of the stripe width w, the applied thermal gradient udT/dxu and the liquid volume V deposited on a connecting reservoir pad. Numerical solutions of the flow speed as a function of downs...

Modeling of thermocapillary flow to purify single-walled carbon nanotubes

Department of Engineering Mechanics and University, Hangzhou 310027, China. E-ma Department of Civil Engineering and S University, Hangzhou 310058, China Department of Mechanical and Aerospace Gables, Florida 33146, USA Department of Electronics Engineering, Inc 772, Republic of Korea The Solid Mechanics Research Center, Bei China Department of Materials Science and Engin Laboratory, University...

Mixing properties of steady flow in thermocapillary driven droplets

We consider mixing via chaotic advection in microdroplets suspended at the free surface of a liquid substrate and driven along a straight line using the thermocapillary effect. With the help of a model derived by Grigoriev Phys. Fluids 17, 033601 2005 we show that the mixing properties of the flow inside the droplet can vary dramatically as a function of the physical properties of the fluids an...