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Numerical Simulations on Thermocapillary Flow on Heated Sinusoidal Topography
Department of Chemical Engineering , Jeju National University , Jeju 63243 , Republic of Korea
Korean Journal of Chemical Engineering, February 2024, 41(2), 411-424(14), https://doi.org/10.1007/s11814-024-00109-1
Abstract
The interaction between thermocapillary fl ow and substrate geometry is analyzed numerically. Taking surface tension into
account, the momentum equation is derived and solved using a commercial FEM solver, COMSOL Multiphysics where the
eff ects of surface tension and surface defl ection can be easily incorporated into the momentum equation. In the case that
the Marangoni number is close to its critical value, i.e., Ma ≈ Ma
c , the strong symmetric thermocapillary fl ow is observed
when the wavelength of topography,
