Dynamics of a gas bubble rising in an inclined channel at finite Reynolds number

摘要: The dynamics of a gas bubble rising in an inclined channel are investigated. solution this free boundary problem is determined numerically by using level set method coupled with finite difference the Navier–Stokes equations. Results presented as function Reynolds number, Bond and angle inclination. Steady solutions for small values both number found. In channel, we find that these parameters increased, will either periodically bounce off upper wall or rupture. vertical increasing first begins to oscillate periodically, then ruptures. steady bifurcate time periodic symmetric oscillation rises up but further increase allows no longer back forth between walls. Our results parallel experimental work which shows there critical inclination at changes from bouncing bubbles bubbles.