A fine wire probe was used to make quantitative measurements of the free surface profile and surface fluctuations around the hydraulic jump formed by a normally impinging free liquid jet. Representative magnitudes of both radial and axial fluctuations were presented for two nozzle sizes and several jet Reynolds numbers and subcritical flow depths. The results were compared to previous measurements of the supercritical flow depth and to theoretical predictions of the circular hydraulic jump size. The agreement appeared reasonable for the supercritical flow depth while the analytical expressions predicted a shorter hydraulic jump than that found by the measurements for the same supercritical flow conditions.
Issue Section:
Research Papers
1.
Bowles
R. I.
Smith
F. T.
1992
, “The Standing Hydraulic Jump: Theory, Computations and Comparisons with Experiments
,” Journal of Fluid Mechanics
, Vol. 242
, pp. 145
–168
.2.
Craik
A. D. D.
Latham
R. C.
Fawkes
M. J.
Gribbon
P. W. F.
1981
, “The Circular Hydraulic Jump
,” Journal of Fluid Mechanics
, Vol. 112
, pp. 347
–362
.3.
Khalifa
A. M.
McCorquodale
J. A.
1979
, “Radial Hydraulic Jump
,” Journal of the Hydraulics Division
, ASCE, Vol. 105
, pp. 1065
–1078
.4.
Khalifa
A. A. M.
McCorquodale
J. A.
1992
, “Simulation of the Radial Hydraulic Jump
,” Journal of Hydraulic Research
, Vol. 30
, n. 2
, pp. 149
–163
.5.
Koloseus
H. J.
Ahmad
D.
1969
, “Circular Hydraulic Jump
,” Journal of the Hydraulics Division
, ASCE, Vol. 95
, pp. 409
–422
.6.
Lawson
J. D.
Phillips
B. C.
1983
, “Circular Hydraulic Jump
,” Journal of Hydraulic Engineering
, Vol. 109
, pp. 505
–518
.7.
Liu
X.
Lienhard
V. J. H.
1993
, “The Hydraulic Jump in Circular Jet Impingement and in Other Thin Liquid Films
,” Experiments in Fluids
, Vol. 15
, pp. 108
–116
.8.
Rahman, M. M., Faghri, A., and Hankey, W. L., 1990a, “The Flow of a Thin Liquid Film on a Stationary and Rotating Disk—Part II: Theoretical Prediction,” AIAA/ASME Thermophysics and Heat Transfer Conference, Heat Transfer in Space Systems, S. H. Chan, E. E. Anderson, R. J. Simoneau, C. K. Chan, D. W. Pepper, B. F. Blackwell, Vol. HTD-Vol. 135, pp. 135–142.
9.
Rahman
M. M.
Faghri
A.
Hankey
W. L.
1991
, “Computation of Turbulent Flow in a Thin Liquid Layer of Fluid Involving a Hydraulic Jump
,” ASME JOURNAL OF FLUIDS ENGINEERING
, Vol. 113
, n. 3
, p. 411
411
.10.
Rajaratnam, N., 1967, “Hydraulic Jumps,” Advances in Hydroscience, V. T. Chow, ed., Vol. 4, pp. 197–281.
11.
Stevens, J., 1991, “Measurements of Local Fluid Velocities in an Axisymmetric, Free Liquid Jet Impinging on a Flat Plate,” Ph.D. thesis, Brigham Young University, Provo, UT, 84602.
12.
Stevens
J.
Webb
B. W.
1992
, “Measurements of the Free Surface Flow Structure Under an Impinging Free Liquid Jet
,” ASME Journal of Heat Transfer
, Vol. 114
, pp. 79
–84
.13.
Thomas, S., Faghri, A., and Hankey, W. L., 1990, “The Flow of a Thin Liquid Film on a Stationary and Rotating Disk—Part I: Experimental Analysis and Flow Visualization,” AIAA/ASME Thermophysics and Heat Transfer Conference, Heat Transfer in Space Systems, S. H. Chan, E. E. Anderson, R. J. Simoneau, C. K. Chan, D. W. Pepper, B. F. Blackwell, eds., HTD-Vol. 135, pp. 125–133.
14.
Watson
E. J.
1964
, “The Radial Spread of a Liquid Jet Over a Horizontal Plane
,” Journal of Fluid Mechanics
, Vol. 20
, part 3, pp. 481
–499
.
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