Journal of Fluids Engineering: Recent submissions

Now showing items 7021-7040 of 9024

    • Viscous and Nuclei Effects on Hydrodynamic Loadings and Cavitation of a NACA 66 (MOD) Foil Section 

      Y. T. Shen; P. E. Dimotakis (The American Society of Mechanical Engineers (ASME), 1989)
      A series of experiments has been conducted on a two-dimensional NACA 66 (MOD) foil to examine the effects of viscosity and nuclei on cavitation inception. In this paper the main discussions ...

    • Pipe Flow Measurements of a Transparent Non-Newtonian Slurry 

      J. T. Park; R. J. Mannheimer; T. A. Grimley; T. B. Morrow (The American Society of Mechanical Engineers (ASME), 1989)
      An experimental description of the flow structure of non-Newtonian slurries in the laminar, transitional, and full turbulent pipe flow regimes is the primary objective of this research. Experiments ...

    • Concentration Fluctuation Spectra in Turbulent Slurry Pipeline Flow 

      R. J. Sumner; M. C. Roco; C. A. Shook (The American Society of Mechanical Engineers (ASME), 1989)
      Using probes responding to changes of slurry electrical resistance with concentration, time spectra of longitudinal concentration fluctuations in turbulent slurry flows have been measured. The ...

    • Flow Speed Measurement and Rheometry by Pulsed Neutron Activation 

      K. G. A. Porges; S. A. Cox; C. Herzenberg; C. Kampschoer (The American Society of Mechanical Engineers (ASME), 1989)
      Pulsed Neutron Activation (PNA) is a means of noninvasive flow velocity measurement based on tagging the flowing medium with a short-lived radioactivity. Previous work with salt or dye-tagging ...

    • Comparison of Computational and Experimental Unsteady Cavitation on a Pitching Foil 

      F. Stern (The American Society of Mechanical Engineers (ASME), 1989)
      Comparisons are made between a nonlinear method for predicting unsteady sheet cavitation and available experimental data for a pitching foil for the purposes of verifying the calculations and ...

    • The Damage Capacity of Cavitating Flow From Pulse Height Analysis 

      S. A. Fry (The American Society of Mechanical Engineers (ASME), 1989)
      Digital pulse amplitude acquisition systems are reviewed and an analogue pulse height analyser (PHA) is described. Cavitation experiments are reported in which pressure pulses in the liquid (water) ...

    • The Effect of Pitch Location on Dynamic Stall 

      E. J. Jumper; R. L. Dimmick; A. J. S. Allaire (The American Society of Mechanical Engineers (ASME), 1989)
      This paper reports the results of theoretical and wind-tunnel studies of the effect of pitch location on dynamic stall for an airfoil pitching at constant rate. A modified momentum-integral ...

    • Unstable Waves of Jet Flows With Density Inhomogeneity 

      Y. T. Fung (The American Society of Mechanical Engineers (ASME), 1989)
      Instability of axisymmetric jet flows of a fluid having a radius-dependent density is investigated. The necessary condition for the existence of unstable waves depends not only on the velocity ...

    • Flow Induced Pulsations in Gas Transport Systems: Analysis of the Influence of Closed Side Branches 

      J. C. Bruggeman; J. Gorter; A. Hirschberg; M. E. H. van Dongen; A. P. J. Wijnands (The American Society of Mechanical Engineers (ASME), 1989)
      A theoretical analysis is presented of the low frequency aero-acoustic behavior of closed side branches along a gas transport pipe. The theory predicts the hydrodynamic conditions for moderate ...

    • Experimental Research of the Effects of Sweep on Unsteady Hydrofoil Loadings in Cavitation 

      A. Ihara; S. Shizukuishi; H. Watanabe (The American Society of Mechanical Engineers (ASME), 1989)
      An experiment was conducted to investigate the effects of sweep angle on hydrofoil loadings in cavitation. Tests were carried out in a water tunnel on constant-chord full-span hydrofoils at ...

    • Extension of the Circle Theorems by Surface Source Distribution 

      O. Rand (The American Society of Mechanical Engineers (ASME), 1989)
      The paper presents a closed-form analytical solution for the source strength distribution along the circumference of a two-dimensional circular cylinder that is required for producing an arbitrary ...

    • A Trajectory-Simulation Model for Heavy Particle Motion in Turbulent Flow 

      Y. Zhuang; J. D. Wilson; E. P. Lozowski (The American Society of Mechanical Engineers (ASME), 1989)
      For many purposes it is useful to be able to mimic the paths of heavy particles in a turbulent flow. This paper gives a simple procedure by which this may be achieved, provided particle ...

    • The Synergistic Effect of Cavitation Erosion and Corrosion for Copper and Cupro-Nickel in Seawater 

      R. J. K. Wood; S. A. Fry (The American Society of Mechanical Engineers (ASME), 1989)
      Experiments are described in which attempts have been made to investigate the fundamental mechanisms of the synergistic effect of cavitation erosion and corrosion. The design of an all-plastic ...

    • Characteristics of Tip Vortex Cavitation Noise 

      H. Higuchi; R. E. A. Arndt; M. F. Rogers (The American Society of Mechanical Engineers (ASME), 1989)
      Tip vortex cavitation noise was experimentally investigated utilizing hydrofoils with an elliptic planform. The noise was monitored by an array of hydrophones. A variety of cavitating conditions ...

    • Calculation of Confined Swirling Flows With a Second Moment Closure 

      W. P. Jones; A. Pascau (The American Society of Mechanical Engineers (ASME), 1989)
      A Reynolds stress transport equation model and the k –ε turbulence model have been applied to the calculation of a confined, strongly swirling flow. A comparison of the results with measurement ...

    • Noise Generated by Cavitation in Orifice Plates 

      S. R. Bistafa; G. C. Lauchle; G. Reethof (The American Society of Mechanical Engineers (ASME), 1989)
      An experimental investigation of the noise generated by cavitation in turbulent shear flows produced by confined sharp-edged orifice plates is reported. The acoustic source strength of cavitation ...

    • Transient Free Surface Shape in an Abruptly Rotating, Partially Filled Cylinder 

      Sangmin Choi; Jae Won Kim; Jae Min Hyun (The American Society of Mechanical Engineers (ASME), 1989)
      An experimental investigation has been made to depict the transient free surface shape in spin-up from rest of a liquid in a partially filled cylinder. The rotational Reynolds number is large ...

    • Turbulent Boundary Layer Development in the Presence of Small Isolated Two-Dimensional Surface Discontinuities 

      D. J. Cockrell; H. H. Nigim; M. A. Alhusein (The American Society of Mechanical Engineers (ASME), 1989)
      Discontinuities in surfaces over which fluids flow can occur in a variety of situations. One of contemporary engineering significance is that which arises on aircraft wings, where the wing forms ...

    • Asymmetrical Boundary Layer Separation at the Base of a Two Cylinder Geometry 

      M. T. Boyle; L. S. Langston (The American Society of Mechanical Engineers (ASME), 1989)
      This paper reports on the experimental description of the three-dimensional horseshoe vortex system occurring at the base of two cylinders mounted side by side on an endwall. The spacing between ...

    • Bistable Flow Patterns in a Free Surface Water Channel 

      E. W. Adams; A. I. Stamou (The American Society of Mechanical Engineers (ASME), 1989)
      A series of experiments is reported on a free surface water tunnel with a slot inlet centered at mid-depth in which the flow exhibited equally probable bistable flow patterns. The two flow ...