Journal of Fluids Engineering: Recent submissions

Now showing items 3281-3300 of 9024

    • Rotordynamic Forces Acting on Three-Bladed Inducer Under Supersynchronous/Synchronous Rotating Cavitation 

      Yoshiki Yoshida; Masato Eguchi; Taiichi Motomura; Masaharu Uchiumi; Hirotaka Kure; Yoshiyulki Maruta (The American Society of Mechanical Engineers (ASME), 2010)
      Asymmetric cavitation, in which cavity lengths are unequal on each blade, is known as a source of cavitation induced shaft vibration in turbomachinery. To investigate the relationship of the ...

    • Flowfield Investigation at Propeller Thrust Reverse 

      Eric W. M. Roosenboom; Andreas Schröder (The American Society of Mechanical Engineers (ASME), 2010)
      The flow phenomena in the slipstream around an eight-bladed propeller at thrust reverse conditions are analyzed using double stereoscopic particle image velocimetry in the Airbus Low-Speed Wind ...

    • Passenger Train Slipstream Characterization Using a Rotating Rail Rig 

      N. Gil; C. J. Baker; C. Roberts; A. Quinn (The American Society of Mechanical Engineers (ASME), 2010)
      This paper presents the results of a new experimental technique to determine the structure of train slipstreams. The highly turbulent, nonstationary nature of the slipstreams make their measurement ...

    • A Comparison of Phase Doppler Analyzer (Dual-PDA) and Optical Patternator Data for Twin-Fluid and Pressure-Swirl Atomizer Sprays 

      Ariel R. Muliadi; Yudaya R. Sivathanu; Jongmook Lim; Paul E. Sojka (The American Society of Mechanical Engineers (ASME), 2010)
      The goal of this study was to determine when patternation information derived from Phase Doppler Analyzer (Dantec Dynamics, Skovlunde, Denmark, dual-PDA) measurements of volume flux, drop velocity, ...

    • Effects of Channel Scale on Slip Length of Flow in Micro/Nanochannels 

      Xiaofan Yang; Zhongquan C. Zheng (The American Society of Mechanical Engineers (ASME), 2010)
      The concept of slip length, related to surface velocity and shear rate, is often used to analyze the slip surface property for flow in micro- or nanochannels. In this study, a hybrid scheme ...

    • Unsteady Cavitation at the Tongue of the Volute of a Centrifugal Pump 

      Rudolf Bachert; Bernd Stoffel; Matevž Dular (The American Society of Mechanical Engineers (ASME), 2010)
      The paper deals with unsteady effects of cavitation at the tongue of the volute of a centrifugal pump. For the investigations parts of the volute casing, including the tongue and the hub of ...

    • PIV Measurements and CFD Computations of Secondary Flow in a Centrifugal Pump Impeller 

      R. W. Westra; L. Broersma; K. van Andel; N. P. Kruyt (The American Society of Mechanical Engineers (ASME), 2010)
      Two-dimensional particle image velocimetry measurements and three-dimensional computational fluid dynamics (CFD) analyses have been performed on the steady velocity field inside the shrouded impeller ...

    • Further Experiments With Suction at a Sudden Enlargement in a Pipe 

      Gunnar Heskestad (The American Society of Mechanical Engineers (ASME), 1970)
      Previously reported experiments on incompressible flow through a step expansion in a pipe, as influenced by suction at the smaller diameter of the step, have been extended to examine effects ...

    • CFD Evaluation of Solid Particles Erosion in Curved Ducts 

      Samy M. El-Behery; Mofreh H. Hamed; K. A. Ibrahim; M. A. El-Kadi (The American Society of Mechanical Engineers (ASME), 2010)
      This paper investigates numerically the erosion phenomenon that occurs in 90 deg and 180 deg curved ducts. The erosion prediction model comprises from three stages: flow modeling, particle ...

    • Effect of Second Order Velocity-Slip/Temperature-Jump on Basic Gaseous Fluctuating Micro-Flows 

      M. A. Hamdan; M. A. Al-Nimr; Vladimir A. Hammoudeh (The American Society of Mechanical Engineers (ASME), 2010)
      In this work, the effect of the second-order term to the velocity-slip/temperature-jump boundary conditions on the solution of four cases in which the driving force is fluctuating harmonically ...

    • Flow Past a Right Circular Cylinder in a Rotating Frame 

      D. L. Boyer (The American Society of Mechanical Engineers (ASME), 1970)
      The flow of a homogeneous incompressible fluid past a right circular cylinder in a rotating frame is considered; the axis of the cylinder is taken parallel to the axis of rotation while the ...

    • Modeling the Unsteady Cavitating Flow in a Cross-Flow Water Turbine 

      E. Sansone; C. Pellone; T. Maitre (The American Society of Mechanical Engineers (ASME), 2010)
      The noncavitating and cavitating flows over a cross-flow water turbine are simulated by using an unsteady Navier–Stokes formulation. For the cavitating flow case, a homogeneous mixture with a ...

    • Pressure Loss in a Horizontal Two-Phase Slug Flow 

      A. R. Kabiri-Samani; S. M. Borghei (The American Society of Mechanical Engineers (ASME), 2010)
      The study of air-water, two-phase flows in hydraulic structures such as pressurized flow tunnels, culverts, sewer pipes, junctions, and similar conduits is of great importance for design purposes. ...

    • Study of Unguided Flow in a Chamber 

      A. Abdel-Fattah (The American Society of Mechanical Engineers (ASME), 2010)
      In the present, a steady laminar of two dimensional and incompressible fluid flow induces from wall injection in a circular chamber has been studied experimentally and numerically. The water ...

    • Numerical and Experimental Analysis of Turbulent Flow in Corrugated Pipes 

      Henrique Stel; Marcelo A. L. Gonçalves; Rigoberto E. M. Morales; Admilson T. Franco; Silvio L. M. Junqueira; Raul H. Erthal (The American Society of Mechanical Engineers (ASME), 2010)
      This article describes a numerical and experimental investigation of turbulent flow in pipes with periodic “d-type” corrugations. Four geometric configurations of d-type corrugated surfaces with ...

    • The Analysis of Cavitation Problems in the Axial Piston Pump 

      Shu Wang (The American Society of Mechanical Engineers (ASME), 2010)
      This paper discusses and analyzes the control volume of a piston bore constrained by the valve plate in axial piston pumps. The vacuum within the piston bore caused by the rise volume needs ...

    • Influence of Gas-Liquid Two-Phase Intermittent Flow on Hydraulic Sand Dune Migration in Horizontal Pipelines 

      Afshin Goharzadeh; Peter Rodgers; Chokri Touati (The American Society of Mechanical Engineers (ASME), 2010)
      This paper presents an experimental study of three-phase flows (air-water-sand) inside a horizontal pipe. The results obtained aim to enhance the fundamental understanding of sand transportation ...

    • Drag Reduction of Tractor-Trailers Using Optimized Add-On Devices 

      Fu-Hung Hsu; Roger L. Davis (The American Society of Mechanical Engineers (ASME), 2010)
      Tractor-trailers have a higher drag coefficient than other vehicles due to their bluff-body shape. Numerous add-on devices have been invented to help reduce drag and fuel consumption. The current ...

    • Shear Flow Over a Wavy Surface With Partial Slip 

      C. Y. Wang (The American Society of Mechanical Engineers (ASME), 2010)
      A viscous shear flow moves parallel to a wavy plate. Partial slip occurs on the wavy surface. The problem is solved by perturbation about a small amplitude parameter, namely, the amplitude ...

    • Effect of J-Groove on the Suppression of Swirl Flow in a Conical Diffuser 

      Junichi Kurokawa; Hiroshi Imamura; Young-Do Choi (The American Society of Mechanical Engineers (ASME), 2010)
      The purpose of this study is to examine the validity of J-grooves in controlling and suppressing the swirl flow in a conical diffuser, for draft surge suppression in a Francis turbine, which ...