Journal of Fluids Engineering: Recent submissions
Now showing items 5661-5680 of 9024
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Wall Pressure and Effective Wall Shear Stresses in Heat Exchanger Tube Inlets With Application to Erosion-Corrosion
(The American Society of Mechanical Engineers (ASME), 1997)Inclined flow into tube inlets is studied in order to identify flow characteristics associated with enhanced erosion-corrosion rates at tube inlets. Measured wall pressures and shear stresses are ... -
Experimental Comparison of Flow Fields at the Inlet and the Outlet of an Inducer With Shrouded and Unshrouded Configurations
(The American Society of Mechanical Engineers (ASME), 1997)The flow field was measured near the inlet and the outlet of an axial flow inducer with shrouded and unshrouded configurations combined with a centrifugal pump. Investigations were conducted ... -
Interfacial Area Concentration and Void Fraction of Two-Phase Flow in Narrow Rectangular Vertical Channels
(The American Society of Mechanical Engineers (ASME), 1997)Adiabatic concurrent vertical two-phase flow of air and water through narrow rectangular channels, gap widths 1 mm and 2 mm, was investigated. This study involved the observation of flow using ... -
A Study on Converging Thin Annular Jets
(The American Society of Mechanical Engineers (ASME), 1997)An interesting feature of jets from liquid-liquid coaxial swirl atomizers used in bipropellant rockets or elsewhere is that the outer jet results in a tulip shaped liquid bulb even at operating ... -
Flow Analysis in a Pump Diffuser—Part 1: LDA and PTV Measurements of the Unsteady Flow
(The American Society of Mechanical Engineers (ASME), 1997)This paper describes experimental research aimed at improving our understanding of the complex unsteady three-dimensional flow field associated with the interaction between a pump impeller and its ... -
Jet-Plate Interaction for Wedge-Shaped Plates of Arbitrary Angles
(The American Society of Mechanical Engineers (ASME), 1997)An investigation has been undertaken to study the problems of jet-plate interaction through the method of hodograph transformation. The physical flow field is first transformed to a hodograph ... -
Nearfield Evolution of a Longitudinal Vortex Generated by an Inclined Jet in a Turbulent Boundary Layer
(The American Society of Mechanical Engineers (ASME), 1997)The nearfield evolution of a longitudinal vortex embedded in a turbulent boundary layer was examined in a wind-tunnel test. The Vortex was produced by an inclined round jet, the diameter of ... -
Chebyshev Collocation Analysis of Axisymmetric Flow and Heat Transfer Between Counter-Rotating Disks
(The American Society of Mechanical Engineers (ASME), 1997)Unsteady constant property flow between two counter-rotating finite disks is considered for a range of Reynolds numbers. Both disks are taken to be isothermal with an imposed temperature difference ... -
Numerical Study of Sail Aerodynamics
(The American Society of Mechanical Engineers (ASME), 1997)A boundary-element method to compute steady flows around a set of sails at close hauled conditions. (i.e., the wind is coming from upstream of the boat at a moderate angle of attack for the ... -
Flow Analysis in a Pump Diffuser—Part 2: Validation and Limitations of CFD for Diffuser Flows
(The American Society of Mechanical Engineers (ASME), 1997)This paper describes an investigation into the use of CFD for highly loaded pump diffuser flows. A reliable commercial Navier-Stokes code with the standard k-ε turbulence model was used for ... -
Correlated Compressible and Incompressible Channel Flows
(The American Society of Mechanical Engineers (ASME), 1997)Compressible flow in channels of slowly varying cross section at moderately high Reynolds numbers is treated in the paper by employing some Stewartson-type transformations that convert the problem ... -
Linear Feedback Control of Boundary Layer Using Electromagnetic Microtiles
(The American Society of Mechanical Engineers (ASME), 1997)This paper presents a system-theory approach to control of a two-dimensional turbulent flow of saltwater on a flat plate using Lorentz forces produced by microtiles of small magnets and electrodes. ... -
Application of Turbulence Models to Bypass Transition
(The American Society of Mechanical Engineers (ASME), 1997)The present study considers the use of low-Reynolds number, single-point closures for transition prediction at high levels of free-stream turbulence. The work is focused on two differential ... -
Eddy Viscosity Transport Equations and Their Relation to the k-ε Model
(The American Society of Mechanical Engineers (ASME), 1997)A formalism will be presented which allows transforming two-equation eddy viscosity turbulence models into one-equation models. The transformation is based on Bradshaw’s assumption that the turbulent ... -
Multigrid Computation of Incompressible Flows Using Two-Equation Turbulence Models: Part I—Numerical Method
(The American Society of Mechanical Engineers (ASME), 1997)A highly efficient numerical approach based on multigrid and preconditioning methods is developed for modeling 3-D incompressible turbulent flows. The incompressible Reynolds-averaged Navier-Stokes ... -
Multigrid Computation of Incompressible Flows Using Two-Equation Turbulence Models: Part II—Applications
(The American Society of Mechanical Engineers (ASME), 1997)In this paper, computational results are presented for three-dimensional high-Reynolds number turbulent flows over a simplified submarine model. The simulation is based on the solution of ... -
Open Channel Flow Over Submerged Obstructions: An Experimental and Numerical Study
(The American Society of Mechanical Engineers (ASME), 1997)This paper reports on experimental and computational investigations of water flow over two-dimensional obstacles in an open channel. Both triangular and semi-circular obstacles are considered in ... -
A Modified Low-Reynolds-Number k-ω Model for Recirculating Flows
(The American Society of Mechanical Engineers (ASME), 1997)A modified form of Wilcox’s low-Reynolds-number k-ω model (Wilcox, 1994) is proposed for predicting recirculating flows. The turbulent diffusion for the specific dissipation rate, ω, is modeled ... -
Numerical Simulation of Channel Flows by a One-Equation Turbulence Model
(The American Society of Mechanical Engineers (ASME), 1997)A one-equation model for turbulent viscosity, previously developed and tested for parabolic flows, is implemented in elliptic cases. The incompressible 2-D and axisymmetric flows in channel with ... -
Friction Factor Determination for Flow Through Finite Wire-Mesh Woven-Screen Matrices
(The American Society of Mechanical Engineers (ASME), 1997)Experiments were carried out to determine the pressure drop through an annular conduit filled with a plain square wire-mesh woven-screen matrix. The tests involved turbulent fully developed flow ...