Bubble Rise In An Inclined Channel
نویسندگان
چکیده
The rise of two-dimensional bubbles in an inclined channel is studied numerically. The numerical scheme uses a conservative finite-difference formulation that solves the equations of motion for both liquid and gas phases. Accurate calculation of the interface position and interfacial forces between gas and liquid are an essential part of the numerical scheme. Careful attention is also paid to mass and momentum advection, and robust and reliable convergence of the pressure field depends heavily on a multigrid technique. Bubble shape and rise velocity are found to be strongly dependent on the relative size of the bubble and channel height and less strongly dependent on inclination angle and coefficients of viscosity and surface tension.
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