年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
Indexed in
THE EFFECT OF MANIFOLD CROSS-FLOW ON THE DISCHARGE COEFFICIENT OF SHARP-EDGED ORIFICES
要約
The objective of this study is to determine the effect of manifold cross-flow on the discharge coefficient and cavitation characteristics of sharp-edged orifices over a wide range of flow rates, back pressures, and cross-flow velocities. The geometries studied cover a range of orifice diameters, length-to-diameter ratios, and orifice angles characteristic of impinging-element liquid rocket injectors. Experimental results for an orifice angle of 90° with respect to the manifold are presented. Along with the experimental effort, an analytical model has been developed. The model predicts the discharge coefficient for a sharp-edged orifice over a wide range of flow regimes including cavitating and noncavitating flow, and for a wide range of orifice geometries. The analytical model generally shows good agreement with the experimental data over the range of conditions studied here. The model also closely follows the experimental data for cavitating flow except when the orifice length-to-diameter ratio is small, in which case the model overpredicts the discharge coefficient.
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Clemo Tom, Coupled Aquifer-Borehole Simulation, Ground Water, 48, 1, 2010. Crossref
-
Dal-Cin Mauro M., Darcovich Ken, Bourdoncle Mathieu, Khan Zahra, Caza Daniel, Comparison of CFD and one-dimensional Bernoulli solutions of the flow in a plate and frame ultrafiltration module in Z configuration, Journal of Membrane Science, 268, 1, 2006. Crossref
-
Collicott Steven H., Li Haiyun, True-scale True-pressure Internal Flow Visualization for Diesel Injectors, SAE Technical Paper Series, 1, 2006. Crossref
-
Ramamurthi K, Nandakumar K, Shankar S, Patnaik R, Hysteresis and bifurcation of flow in fuel injection nozzles, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 215, 1, 2001. Crossref
-
Czetany Laszlo, Lang Peter, Discharge Coefficients for Circular Side Outlets, Journal of Fluids Engineering, 140, 7, 2018. Crossref
-
Silva Mayara Francisca da, Gonçalves Fábio Veríssimo, Janzen Johannes Gérson, Effect of hydraulic and geometric factors upon leakage flow rate in pressurized pipes, RBRH, 26, 2021. Crossref