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