Journal of Fluids Engineering: Recent submissions

Now showing items 4701-4720 of 9024

    • Computational Evaluation of the Periodic Performance of a NACA 0012 Fitted With a Gurney Flap 

      James C. Date; Stephen R. Turnock (The American Society of Mechanical Engineers (ASME), 2002)
      A detailed computational investigation into the periodic two-dimensional performance of a NACA 0012 section fitted with 2 and 4 percent h/c Gurney flaps operating at a Reynolds number of ...

    • The Effect of Finite Amplitude Disturbance Magnitude on Departures From Laminar Conditions in Impulsively Started and Steady Pipe Entrance Flows 

      E. A. Moss; A. H. Abbot (The American Society of Mechanical Engineers (ASME), 2002)
      The aim of this study was to investigate first departures from laminar conditions in both impulsively started and steady pipe entrance flows. Wall shear stress measurements were conducted of ...

    • Editorial 

      Joseph Katz (The American Society of Mechanical Engineers (ASME), 2002)
      Another year has passed and with it, some Associate Editors have completed their three-year terms and new ones have joined us. I would like to take this opportunity to express my gratitude ...

    • Numerical Prediction of Hot-Wire Corrections Near Walls 

      Franz Durst; Professor of Fluid Mechanics and Director of the Institute; Jun-Mei Shi; Research Scientist of CFD Group; Michael Breuer; Senior Research Scientist and Head of CFD Group (The American Society of Mechanical Engineers (ASME), 2002)
      A thorough numerical investigation was performed for the two-dimensional convective heat transfer of a circular cylinder in a Couette flow close to a wall in order to study the hot-wire near-wall ...

    • Laminar Flow Between a Rotating Disk and a Parallel Stationary Wall With and Without Radial Inflow 

      R. A. Conover (The American Society of Mechanical Engineers (ASME), 1968)
      The laminar velocity field between a rotating disk and a stationary disk of the same diameter was investigated by means of a pulsed dye technique without throughflow and in the presence of ...

    • An Experimentally Validated Model for Two-Phase Pressure Drop in the Intermittent Flow Regime for Circular Microchannels 

      S. Garimella; J. D. Killion; J. W. Coleman (The American Society of Mechanical Engineers (ASME), 2002)
      This paper reports the development of an experimentally validated model for pressure drop during intermittent flow of condensing refrigerant R134a in horizontal microchannels. Two-phase pressure ...

    • Numerical Simulation of Polymer Flow Into a Cylindrical Cavity 

      Amit Kumar; Former Graduate Student; P. S. Ghoshdastidar (The American Society of Mechanical Engineers (ASME), 2002)
      In this paper, new finite-difference based detailed general methodologies are presented for numerical simulation of injection mold-filling during the production of a long cylindrical object. The ...

    • Guest Editorial 

      Adiel Guinzburg; Paul Cooper (The American Society of Mechanical Engineers (ASME), 2002)
      Seven of the papers in this issue’s special section were presented at the 4th International Symposium on Pumping Machinery in 2001. An additional four related papers are also included here. ...

    • The Effects of Compression and Pore Size Variations on the Liquid Flow Characteristics in Metal Foams 

      K. Boomsma; D. Poulikakos; ASME Fellow (The American Society of Mechanical Engineers (ASME), 2002)
      Open-cell aluminum foams were investigated using water to determine their hydraulic characteristics. Maximum fluid flow velocities achieved were 1.042 m/s. The permeability and form coefficient ...

    • Numerical Simulations of Hydraulic Jumps in Water Sloshing and Water Impacting 

      Tzung-hang Lee; Zhengquan Zhou; Yusong Cao; Principal Consultant (The American Society of Mechanical Engineers (ASME), 2002)
      A numerical investigation on Glimm’s method as applied to water sloshing and impacting is carried out. Emphasis is given to the handling and predicting hydraulic jumps. The effects of the ...

    • Transient Effects in the Discharge of Compressed Air From a Cylinder Through an Orifice 

      B. E. L. Deckker; Y. F. Chang (The American Society of Mechanical Engineers (ASME), 1968)
      The transient nature of the flow through square-edge orifices during discharge from a cylinder and the accompanying expansion of the air have been examined in systematic experiments based on ...

    • Measurement of the Instantaneous Velocity Gradients in Plane and Axisymmetric Turbulent Wake Flows 

      T. Schenck; Ph.D. Student; J. Jovanović; Senior Research Scientist (The American Society of Mechanical Engineers (ASME), 2002)
      All first-order spatial derivatives of the turbulent velocity fluctuations were measured using a pair of X hot-wire probes. Measurements were performed in the self-preserving region of a turbulent ...

    • LDA-Measurements of Transitional Flows Induced by a Square Rib 

      S. Becker; C. M. Stoots; K. G. Condie; F. Durst; D. M. McEligot (The American Society of Mechanical Engineers (ASME), 2002)
      New fundamental measurements are presented for the transition process in flat plate boundary layers downstream of two-dimensional square ribs. By use of laser Doppler anemometry (LDA) and a large ...

    • The Thermal Ratchet Mechanism 

      D. Burgreen (The American Society of Mechanical Engineers (ASME), 1968)
      Thermal ratcheting is the cyclic growth of a structure that is subjected to successive cycles of heating and cooling. The mechanism of thermal ratcheting in a simple two-element assembly is ...

    • Large Eddy Simulation of Turbulent Wake Behind a Square Cylinder With a Nearby Wall 

      Tong-Miin Liou; Shih-Hui Chen; Po-Wen Hwang (The American Society of Mechanical Engineers (ASME), 2002)
      Computations of the time-averaged and phase-averaged fluid flow and heat transfer based on large eddy simulation (LES) are presented for turbulent flows past a square cylinder with and without ...

    • Surface Roughness Effects on Turbulent Boundary Layer Structures 

      L. Keirsbulck; L. Labraga; A. Mazouz; C. Tournier (The American Society of Mechanical Engineers (ASME), 2002)
      A turbulent boundary layer structure which develop over a k-type rough wall displays several differences with those found on a smooth surface. The magnitude of the wake strength depends on the ...

    • Scale Effect of Cavitation Inception on a 2D Eppler Hydrofoil 

      E. L. Amromin (The American Society of Mechanical Engineers (ASME), 2002)
      Cavitation inception on an E817 hydrofoil issued from an inverse calculus for ideal fluid has been numerically analyzed for speeds and scales inherent to both model test and full-scale marine ...

    • An Investigation of Flow Fields Over Multi-Element Aerofoils 

      S. R. Maddah; H. H. Bruun (The American Society of Mechanical Engineers (ASME), 2002)
      This paper presents results obtained from a combined experimental and computational study of the flow field over a multi-element aerofoil with and without an advanced slat. Detailed measurements ...

    • Fluid Flow Equations for Rotordynamic Flows in Seals and Leakage Paths 

      Y. Hsu; C. E. Brennen (The American Society of Mechanical Engineers (ASME), 2002)
      Fluid-induced rotordynamic forces produced by the fluid in an annular seal or in the leakage passage surrounding the shroud of a pump or turbine, are known to contribute substantially to the ...

    • Large Eddy Simulation of a Flow Past a Free Surface Piercing Circular Cylinder 

      T. Kawamura; S. Mayer; A. Garapon; L. Sørensen (The American Society of Mechanical Engineers (ASME), 2002)
      Interactions between surface waves and underlying viscous wake are investigated for a turbulent flow past a free surface piercing circular cylinder at Reynolds number Re=2.7×104 using large ...