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Showing 1 to 4 of 4 for “"Overexpanded flow"”.
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Shock formation in overexpanded flow: a study using the hydraulic analogy
… the mechanism of shock formation in supersonic flow in long orifices to gain insight into the leakage flow of turbine tip gaps. The flow was modeled on a water table using a sharp-edged rectangular channel. The hydraulic analogy between free surface water flows and compressible gas flows was …
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Turbulence measurements of heated supersonic slot injection into a supersonic stream
… stream was injected parallel to the main flow at 10.7 psia, resulting in a slightly overexpanded flow. The injection slot had a height of 1.2 cm. The flow was monitored at four streamwise stations (x/H = .25, 4, 10, 20). The total temperature of the injected stream was varied from 300 K …
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Characterization and Analysis of Supersonic Flow Through De Laval Nozzles at Varied Design Conditions
… on nozzle performance, particularly within the overexpanded regime. Quantitative data in the form of wall pressure measurements and flow visualization via schlieren imaging were collected.</p> <p>The investigation uncovered distinctive characteristics of overexpanded flow in planar nozzles, …
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Effect of Nozzle Pressure Ratio on Thrust and Flow Behavior in a Supersonic De Laval Nozzle
<p>Supersonic nozzles operate across a range of flow regimes. While an ideally expanded condition yields optimal thrust, practical propulsion systems rarely operate at this design point due to variations in altitude and engine operating conditions. As a result, nozzles frequently operate in …