function BubbleVelocity extends Modelica.Icons.ObsoleteModel; input Units.VoidFraction alphaV "Void fraction in liquid region"; input SI.Density rho_v "Vapor density"; input SI.Area Ac "Average cross sectional area"; input SI.Velocity v_bub "Bubble terminal velocity"; output SI.MassFlowRate m_flow "Mass flow rate"; end BubbleVelocity;