This mixing section has inside a first part of the section a number of transition passages which run in the direction of flow and ensure the smooth passing of {HEAD ~ the flow} formed in {TAIL ~ the swirl generator} into a tube arranged downstream 
formed in
This mixing section has inside a first part of the section a number of transition passages which run in the direction of flow and ensure the smooth passing of { HEAD ~ the flow } formed in { TAIL ~ the swirl generator } into a tube arranged downstream
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH