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Showing 1 to 3 of 3 for “"Critical Valve"”.
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Supersonic wind-tunnel : nozzle design and control system analysis
… wind- tunnels. Without pressure recovery the critical flow pressure ratio through the tunnel for Mach 2,35 nozzles, is 2,53. Therefore it may be shown that the subsonic diffuser, and the silencer incorporated into it, is about 75% efficient. The analysis and modification to the existing …
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In vitro Kavitationsuntersuchungen an mechanischen Herzklappenprothesen
Cavitation at mechanical heart valves with it's character of impairment still represents a major task. In this dissertation -in continuation of the studies of Graf et al. -several investigations of cavitation, in particular of "severe" vapor cavitation, were conducted in order to describe the …
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Boiler feed pump low load – leak off recirculation study
… start-up operating conditions. The recirculation valve, also known as a leak off valve, experiences a very high pressure difference and cavitation pitting is common due to the water being close to saturation. There are various ways in which the recirculation flow is controlled in the industry such …