About bubbleFoam/twoPhaseEulerFoam
 

Is there anyone could tell me what is the intension to transfer part term in UEqns such as drag force and gravity from UEqns.H to pEqn.H? I dont see any reason inside. Actually I found it's better to leave these terms in UEqns. After doing so, I found the oscillation of Ur disappeared in those cells next to inlet.