Journal of Fluids Engineering: Recent submissions

Now showing items 3841-3860 of 9024

    • A Mean-Field Pressure Formulation for Liquid-Vapor Flows 

      Shi-Ming Li; Danesh K. Tafti (The American Society of Mechanical Engineers (ASME), 2007)
      A nonlocal pressure equation is derived from mean-field free energy theory for calculating liquid-vapor systems. The proposed equation is validated analytically by showing that it reduces to van ...

    • Theoretical Parameter Study of Aerodynamic Vectoring Particle Sorting 

      Dane N. Jackson; Barton L. Smith (The American Society of Mechanical Engineers (ASME), 2007)
      A new particle sorting technique called aerodynamic vectoring particle sorting (AVPS) has recently been shown to be effective at sorting particles without particles contacting surfaces. The technique ...

    • Development and Implementation of an Experimental-Based Reduced-Order Model for Feedback Control of Subsonic Cavity Flows 

      E. Caraballo; J. Little; M. Debiasi; M. Samimy (The American Society of Mechanical Engineers (ASME), 2007)
      This work is focused on the development of a reduced-order model based on experimental data for the design of feedback control for subsonic cavity flows. The model is derived by applying the ...

    • PIV Study of Shallow Open Channel Flow Over d- and k-Type Transverse Ribs 

      M. F. Tachie; K. K. Adane (The American Society of Mechanical Engineers (ASME), 2007)
      A particle image velocimetry was used to study shallow open channel turbulent flow over d-type and k-type transverse ribs of square, circular, and semi-circular cross sections. The ratio of ...

    • Optimal Location of a Synthetic Jet on an Airfoil for Stall Control 

      R. Duvigneau; A. Hay; M. Visonneau (The American Society of Mechanical Engineers (ASME), 2007)
      This study deals with the optimization of the location of a synthetic jet on the suction side of an airfoil to control stall. The optimal location is found by coupling a time-accurate flow ...

    • Heat Transfer in a Laminar Channel Flow Generated by Injection Through Porous Walls 

      Clarisse Fournier; Françoise Bataille; Marc Michard (The American Society of Mechanical Engineers (ASME), 2007)
      Steady state similarity solutions are computed to determine the temperature profiles in a laminar channel flow driven by uniform fluid injection at one or two porous walls. The temperature ...

    • Power Law Velocity Profile in the Turbulent Boundary Layer on Transitional Rough Surfaces 

      Noor Afzal (The American Society of Mechanical Engineers (ASME), 2007)
      A new approach to scaling of transitional wall roughness in turbulent flow is introduced by a new nondimensional roughness scale ϕ. This scale gives rise to an inner viscous length scale ...

    • New Model for Compressible Vortices 

      Yasser Aboelkassem; Georgios H. Vatistas (The American Society of Mechanical Engineers (ASME), 2007)
      A new analytical solution for self-similar compressible vortices is derived in this paper. Based on the previous incompressible formulation of intense vortices, we derived a theoretical model ...

    • Evolution and Turbulence Properties of Self-Sustained Transversely Oscillating Flow Induced by Fluidic Oscillator 

      Rong Fung Huang; Kuo Tong Chang (The American Society of Mechanical Engineers (ASME), 2007)
      The evolution process and turbulence properties of a transversely oscillating flow induced by a fluidic oscillator are studied in a gravity-driven water tunnel. A planar jet is guided to impinge ...

    • Force Stream Function Method Applied to Classical Griffith’s Crack Problem 

      Xiang Wu; Joseph Genin (The American Society of Mechanical Engineers (ASME), 2007)
      In a previous paper (, and , 2003, J. Strain Anal. Eng. Des., 38(2), pp. 181–185), we presented a new stress analysis procedure, the force stream function method. It established a general ...

    • Surface Tension Measurement at High Temperatures by using Dynamics of Melt Flow 

      A. Moradian; J. Mostaghimi (The American Society of Mechanical Engineers (ASME), 2007)
      Surface tension of melts at high temperature has significant effects on different industrial processes. In a new containerless method for surface tension measurement, an atmospheric radio-frequency ...

    • Unsteady Flow and Wake Transport in a Low-Speed Axial Fan With Inlet Guide Vanes 

      Jesús Manuel Fernández Oro; Katia María Argüelles Díaz; Carlos Santolaria Morros; Eduardo Blanco Marigorta (The American Society of Mechanical Engineers (ASME), 2007)
      The present study is focused on the analysis of the dynamic and periodic interaction between both fixed and rotating blade rows in a single stage, low-speed axial fan with inlet guide vanes. ...

    • Analysis of Thermal Effects in a Cavitating Inducer Using Rayleigh Equation 

      Jean-Pierre Franc; Christian Pellone (The American Society of Mechanical Engineers (ASME), 2007)
      A simple model based on the resolution of Rayleigh equation is used to analyze thermal effects in cavitation. Two different assumptions are considered for the modeling of heat transfer toward ...

    • Vortex Dynamics and Low-Pressure Fluctuations in the Tip-Clearance Flow 

      Donghyun You; Meng Wang; Parviz Moin; Rajat Mittal (The American Society of Mechanical Engineers (ASME), 2007)
      The tip-clearance flow in axial turbomachines is studied using large-eddy simulation with particular emphasis on understanding the unsteady characteristics of the tip-leakage vortical structures and ...

    • Influence of Passive Flow-Control Devices on the Pressure Fluctuations at Wing-Body Junction Flows 

      Semih M. Ölçmen; Roger L. Simpson (The American Society of Mechanical Engineers (ASME), 2007)
      The effectiveness of passive flow-control devices in eliminating high surface rms pressure fluctuations at the junction of several idealized wing/body junction flows was studied. Wall-pressure ...

    • PIV Measurements in Square Backward-Facing Step 

      Mika Piirto; Aku Karvinen; Hannu Ahlstedt; Pentti Saarenrinne; Reijo Karvinen (The American Society of Mechanical Engineers (ASME), 2007)
      Measurements with both two-dimensional (2D) two-component and three-component stereo particle image velocimetry (PIV) and computation in 2D and three-dimensional (3D) using Reynolds stress turbulence ...

    • CFD Analysis of Compressible Flow Across a Complex Geometry Venturi 

      Diego A. Arias; Timothy A. Shedd (The American Society of Mechanical Engineers (ASME), 2007)
      A commercial computational fluid dynamics (CFD) package was used to develop a three-dimensional, fully turbulent model of the compressible flow across a complex-geometry venturi, such as those ...

    • Cavitation Influence on von Kármán Vortex Shedding and Induced Hydrofoil Vibrations 

      Philippe Ausoni; Xavier Escaler; François Avellan; Eduard Egusquiza; Mohamed Farhat (The American Society of Mechanical Engineers (ASME), 2007)
      The present study deals with the shedding process of the von Kármán vortices at the trailing edge of a 2D hydrofoil at high Reynolds number Reh =25×103 –65×103 . This ...

    • An Experimental Investigation of the Separation Points on a Circular Rotating Cylinder in Cross Flow 

      L. Labraga; G. Kahissim; L. Keirsbulck; F. Beaubert (The American Society of Mechanical Engineers (ASME), 2007)
      The flow past a rotating cylinder placed within a uniform stream is investigated at Reynolds numbers ranging from 8500 to 17,000 to 34,000. The dimensionless rotation rate α (ratio of the ...

    • ASME Freeman Scholar 

      Unknown author (The American Society of Mechanical Engineers (ASME), 2007)
      The 19th ASME Freeman Scholar committee is soliciting proposals for a person of high capability and considerable experience in an area of fluids engineering to be selected as the Freeman ...