Wind tunnel tests made on three tubes with flow regulated by suction at trailing edge; it was possible to vary mass flow through tube over large range; it is indicated that thrust of shrouded propeller can be increased at low forward speeds by suction at trailing edge of shroud. English translation from (ZWB) Deutsche Luftfahrtforschung -- Forschungsbericht n 1945 May 19 1944.
Venturi tube with varying mass flow
Nat Advisory Committee Aeronautics -- Tech Memo
1948
31 pages
Report
Englisch
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