NASA NTRS · 19710000221
Variable-area nozzle automatically controls fluid flow
Abstract
Simple, passive nozzle requires no active control system to vary injection area. Injection area changes with changing pressure, thereby allowing greater flow as pressure increases. As pressure drop across nozzle is decreased, spring action of segments causes them to move inward, decreasing the flow area.
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Conrad, E. W.. 1971-07-01. Variable-area nozzle automatically controls fluid flow. https://ntrs.nasa.gov/citations/19710000221
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