{HEAD ~ The gas} to slurry volume ratio should also be controlled to assure that the flow regime does not shift from {TAIL ~ homogeneous flow} to non homogeneous flow 
{ HEAD ~ The gas } to slurry volume ratio should also be controlled to assure that the flow regime does not shift from { TAIL ~ homogeneous flow } to non homogeneous flow
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH