Transcription of NOZZLES - UPM
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NOZZLES 1 NOZZLES NOZZLES .. 1 nozzle flow equations .. 4 Choked flow .. 5 Area 6 Converging nozzle .. 7 Converging-diverging nozzle .. 9 Discontinuities in nozzle flow: normal and oblique shocks, expansion fans. Mach diamonds .. 14 Aerospike nozzle .. 18 NOZZLES A nozzle (from nose, meaning 'small spout') is a tube of varying cross-sectional area (usually axisymmetric) aiming at increasing the speed of an outflow, and controlling its direction and shape. nozzle flow always generates forces associated to the change in flow momentum, as we can feel by hand-holding a hose and opening the tap.
, with exit . p pressure, p. e, explained below. The objective is to find the flow conditions at the exit [p. e, T. e, v. e] for a given set of the above parameters, [A. e,γ , R, p. c, T. c,, p. 0], so that: ee eee ee e e e,, pv m vA vA F mv M RT ρ γ = = (1 ) If the nozzle flow is subsonic, then the exit …
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