Numerical Simulations of Convection Induced by Korteweg Stresses in Miscible Polymer-Monomer Systems
Document Type
Article
Publication Date
3-1-2005
Department
Chemistry and Biochemistry
School
Mathematics and Natural Sciences
Abstract
We modeled a miscible polymer-monomer system with a sharp transition zone separating the two fluids to determine if convection analogous to Marangoni convection in immiscible fluids could occur because of thermal and concentration gradients. We considered three cases: with a temperature gradient along the transition zone, with a variable transition zone width, and one with a gradient in the conversion of polymerization. Using the Navier-Stokes equations with an additional term, the Korteweg stress term arising from non-local interactions in the fluid, we demonstrated with realistic parameters that measurable fluid flow would result in the absence of buoyancy-driven convection for all three cases. To avoid buoyancy-driven convection, the experiment would have to be performed in microgravity.
Publication Title
Microgravity Science and Technology
Volume
17
Issue
1
First Page
8
Last Page
12
Recommended Citation
Bessonov, N.,
Volpert, V. A.,
Pojman, J. A.,
Zoltowski, B. D.
(2005). Numerical Simulations of Convection Induced by Korteweg Stresses in Miscible Polymer-Monomer Systems. Microgravity Science and Technology, 17(1), 8-12.
Available at: https://aquila.usm.edu/fac_pubs/9086