Determination of thermophoretic force on a particle in transitional flow

Autor: Ryan W. Bosworth, Sergey Gimelshein, Natalia Gimelshein, Andrew Ketsdever
Rok vydání: 2014
Předmět:
Zdroj: AIP Conference Proceedings.
ISSN: 0094-243X
Popis: Both positive and negative thermophoretic forces are experimentally measured using a nano-Newton Thrust Stand (nNTS) to determine the effect of temperature gradient on force produced. It is found that there is an average 62% maximum force increase as thermally driven walls about a spherical particle are increased 300% in separation distance while thermal gradient is held constant. Negative thermophoretic force is found to increase at the same order of magnitude as positive thermophoretic force with increasing temperature gradient.
Databáze: OpenAIRE