Journal of Fluids Engineering: Recent submissions
Now showing items 5921-5940 of 9024
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Computation of Vortex Lock-In in the Laminar Wake of a Circular Cylinder Using Unsteady Monopole Sources
(The American Society of Mechanical Engineers (ASME), 1995)The vortex lock-in in the laminar wake behind a circular cylinder induced by the unsteady monopole source is numerically simulated in this paper. The artificial compressibility method is employed ... -
Application of Turbulence Models to Separated Flow Over Rough Surfaces
(The American Society of Mechanical Engineers (ASME), 1995)Principal results of classical experiments on the effects of sandgrain roughness are briefly reviewed, along with various models that have been proposed to account for these effects in numerical ... -
Perspective: Selected Benchmarks From Commercial CFD Codes
(The American Society of Mechanical Engineers (ASME), 1995)This paper summarizes the results of a series of five benchmark simulations which were completed using commercial Computational Fluid Dynamics (CFD) codes. These simulations were performed by the ... -
A Calculation Method for Developing Turbulent Flow in Rectangular Ducts of Arbitrary Aspect Ratio
(The American Society of Mechanical Engineers (ASME), 1995)This paper describes a full Reynolds stress transport equation model for predicting developing turbulent flow in rectangular ducts. The pressure-strain component of the model is based on a ... -
The Effect of Rotary Arms on Corotating Disk Flow
(The American Society of Mechanical Engineers (ASME), 1995)This investigation studied the impact of rotary style arms on the flow between corotating disks contained by a stationary cylindrical enclosure. Both ventilated and nonventilated hub configurations ... -
Finite Aspect Ratio Effects on Vortex Shedding Behind Two Cylinders at Angles of Incidence
(The American Society of Mechanical Engineers (ASME), 1995)Wind tunnel tests were undertaken at subcritical Reynolds numbers to determine the vortex shedding characteristics behind a pair of finite circular cylinders at distances from one to six diameters ... -
A Note on the Baldwin-Lomax Turbulence Model
(The American Society of Mechanical Engineers (ASME), 1995)An analytic expression is obtained for the constant Ccp in the Baldwin-Lomax model by comparing self-similar solutions for velocity in a constant pressure incompressible flow that are based on ... -
Preliminary Investigation of the Use of Air Injection to Mitigate Cavitation Erosion
(The American Society of Mechanical Engineers (ASME), 1995)This project was initiated as part of a new research and development focus to improve hydropower generation. One aspect of the problem is severe cavitation erosion which is experienced when ... -
Particle Size and Velocity Discrimination in a Sediment-Laden Turbulent Flow Using Phase Doppler Anemometry
(The American Society of Mechanical Engineers (ASME), 1995)A series of experiments were performed in a mixing box in order: (1) to investigate the applicability of phase Doppler anemometry (PDA) to discriminate fluid and sediment particle sizes and ... -
Developing Lengths in Horizontal Two-Phase Bubbly Flow
(The American Society of Mechanical Engineers (ASME), 1995)An air-water two-phase flow facility with a 19.1 mm i.d. test section has been fabricated. Local measurements of pressure drop for two-phase horizontal bubbly flow and single-phase flow downstream ... -
On the Effect of Surface Roughness on the Vapor Flow Under Leidenfrost-Levitated Droplets
(The American Society of Mechanical Engineers (ASME), 1995)In this paper a theoretical investigation is reported on the effect of surface roughness on the phenomenon of Leidenfrost-levitation of droplets above a hot surface. The problem is solved first ... -
Surface Roughness Effects on Induced Flow and Frictional Resistance of Enclosed Rotating Disks
(The American Society of Mechanical Engineers (ASME), 1995) -
Stability of Computational Algorithms Used in Molecular Dynamics Simulations
(The American Society of Mechanical Engineers (ASME), 1995)The present study focuses on a three-dimensional Lennard-Jones system in a thermodynamic equilibrium in order to discuss divergence processes, the relationship between time intervals and divergence ... -
A Simple, Accurate Integral Solution for Accelerating Turbulent Boundary Layers With Transpiration
(The American Society of Mechanical Engineers (ASME), 1995)The inner law for transpired turbulent boundary layers is used as the velocity profile in the integral form of the x momentum equation. The resulting ordinary differential equation is solved ... -
An Experimental Investigation of the Flow Through an Axial-Flow Pump
(The American Society of Mechanical Engineers (ASME), 1995)The high Reynolds number pump (HIREP) facility at ARL Penn State has been used to perform a low-speed, large-scale experiment of the incompressible flow of water through a two-blade-row ... -
Measurement and Analysis of Static Pressure Field in a Torque Converter Turbine
(The American Society of Mechanical Engineers (ASME), 1995)In this paper, the static pressure field and performance parameters of a torque converter turbine are measured, analyzed, and interpreted under three speed ratio conditions (0, 0.6, and 0.8). ... -
The Response of a Centrifugal Pump to Fluctuating Rotational Speed
(The American Society of Mechanical Engineers (ASME), 1995)A theoretical and experimental study has been made on the dynamic characteristics of a centrifugal pump subject to sinusoidal changes in rotational speed. Time-dependent rotational speed, flow-rate, ... -
Friction Characteristics of Sliding Surfaces Undergoing Subsurface Plastic Flow
(The American Society of Mechanical Engineers (ASME), 1960)It is well known that the load of an ordinary friction slider is supported by a large number of surface asperities having a collective area that is small compared with the apparent area of ... -
Experimental Investigation of the Flow Inside a Water Model of a Gas Turbine Combustor: Part 2—Higher Order Moments and Flow Visualization
(The American Society of Mechanical Engineers (ASME), 1995)The measurements of mean and turbulent quantities presented in Part 1 showed a strong influence of the primary jet system and evidence of the existence of bimodal distributions of the azimuthal ... -
Oscillatory Electrohydrodynamic Gas Flows
(The American Society of Mechanical Engineers (ASME), 1995)Prior numerical solutions of electrohydrodynamic flows in a positive-corona, wire-plate electrostatic precipitator are extended to reveal steady-periodic electrohydrodynamic flows. Previously, only ...