Effect of Rolling Motion on Forced Circular Boiling Flow Characteristics

The boiling flow characteristics under rolling motion condition is experimentally studied.The results show that the variation of spatial location under rolling motion condition leads to the clogging of bubble and induces the mass flow rate fluctuate periodical.The marginal stability boundary(MSB) is affected by the flow flux,rolling amplitude,rolling period,inlet subcooling and inlet pressure.The effect of rolling amplitude and rolling period on the MSB decreases with the increasing of flow flux.In addition,increasing the mass flow rate,inlet subcooling or inlet pressure tends to stabilize the boiling system.