Examination of a large number of experiments dealing with flashing flows in converging and converging-diverging nozzles reveals that knowledge of the flashing inception point is the key to the prediction of critical flow rates. An extension of the static flashing inception correlation of Jones [16] and Alamgir and Lienhard [17] to flowing systems has allowed the determination of the location of flashing inception in nozzle flows with subcooled inlet conditions. It is shown that in all the experiments examined with subcooled inlet regardless of the degree of inlet subcooling, flashing inception invariably occurred very close to the throat. A correlation is given to predict flashing inception in both pipes and nozzles which matches all data available, but is lacking verification in intermediate nozzle geometries where turbulence may be important. A consequence of this behavior is that the critical mass flux may be correlated to the pressure difference between the nozzle inlet and flashing inception, through a single phase liquid discharge coefficient and an accurate prediction of the flashing inception pressure at the throat. Comparison with the available experiments indicate that the predicted mass fluxes are within 5 percent of the measurements.
Skip Nav Destination
Article navigation
Research Papers
Critical Flashing Flows in Nozzles With Subcooled Inlet Conditions
N. Abuaf,
N. Abuaf
General Electric Co., Schenectady, N.Y. 12301; Brookhaven National Laboratory, Upton, N.Y. 11973
Search for other works by this author on:
O. C. Jones, Jr.,
O. C. Jones, Jr.
Rensselaer Polytechnic Institute, Troy, N.Y.; Brookhaven National Laboratory, Upton, N.Y. 11973
Search for other works by this author on:
B. J. C. Wu
B. J. C. Wu
Lawrence Livermore National Laboratory, Livermore, Calif.; Brookhaven National Laboratory, Upton, N.Y. 11973
Search for other works by this author on:
N. Abuaf
General Electric Co., Schenectady, N.Y. 12301; Brookhaven National Laboratory, Upton, N.Y. 11973
O. C. Jones, Jr.
Rensselaer Polytechnic Institute, Troy, N.Y.; Brookhaven National Laboratory, Upton, N.Y. 11973
B. J. C. Wu
Lawrence Livermore National Laboratory, Livermore, Calif.; Brookhaven National Laboratory, Upton, N.Y. 11973
J. Heat Transfer. May 1983, 105(2): 379-383 (5 pages)
Published Online: May 1, 1983
Article history
Received:
February 22, 1982
Online:
October 20, 2009
Citation
Abuaf, N., Jones, O. C., Jr., and Wu, B. J. C. (May 1, 1983). "Critical Flashing Flows in Nozzles With Subcooled Inlet Conditions." ASME. J. Heat Transfer. May 1983; 105(2): 379–383. https://doi.org/10.1115/1.3245589
Download citation file:
Get Email Alerts
Cited By
On Prof. Roop Mahajan's 80th Birthday
J. Heat Mass Transfer
Thermal Hydraulic Performance and Characteristics of a Microchannel Heat Exchanger: Experimental and Numerical Investigations
J. Heat Mass Transfer (February 2025)
Related Articles
Modeling and Simulation of Subcooled Coolant Loss Through Circumferential Pipe Leakage
ASME J of Nuclear Rad Sci (July,2021)
Fluid Dynamics of a Pre-Swirl Rotor-Stator System
J. Turbomach (October,2003)
An Improved Model for Predicting Affected Region of Flashing Jet
J. Pressure Vessel Technol (December,2024)
Photographic Observations of Bubble Formation in Flashing Nozzle Flow
J. Heat Transfer (November,1985)
Related Proceedings Papers
Related Chapters
Antilock-Braking System Using Fuzzy Logic
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Natural Gas Transmission
Pipeline Design & Construction: A Practical Approach, Third Edition
Openings
Guidebook for the Design of ASME Section VIII Pressure Vessels, Third Edition