Abstract:

We present an analytical model for the bending of liquid jets and sheets from temperature gradients, as recently observed by Chwalek [Phys. Fluids 14, L37 (2002)]. The bending arises from a local couple caused by Marangoni forces. The dependence of the bending angle on experimental parameters is presented, in qualitative agreement with reported experiments. The methodology gives a simple framework for understanding the mechanisms for jet and sheet bending. (C) 2003 American Institute of Physics.