Record Display for the EPA National Library Catalog


Main Title Hydraulics of Long Vertical Conduits and Associated Cavitation.
CORP Author Minnesota Univ., Minneapolis. St. Anthony Falls Hydraulic Lab.
Year Published 1971
Report Number EPA-14-12-861; EPA-11034-FLU; 11034-FLU-06/71;
Stock Number PB-213 443
Additional Subjects ( Storm sewers ; Design) ; ( Cavitation ; Storm sewers) ; Hydraulics ; Head(Fluid mechanics) ; Two phase flow ;
Library Call Number Additional Info Location Last
NTIS  PB-213 443 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 52p
Experimental studies were undertaken to examine the flow in long vertical conduits with particular reference to the design of storm water drop shafts. A distinguishing characteristic of such flow is the potential cavitation regime. Its existence depends upon the design of the structure. The cavitation regime will develop when the conduit is sufficiently long and the head sufficiently large. It can also be generated at a lower head if a control valve is installed in the supply line so that the net head can be negative. If a small amount of air is introduced into the system, the cavitation region is eliminated, the pressure gradient is more uniform, and the flow consists of a uniform mixture of air and water. (Author)