Journal of Fluids Engineering: Recent submissions
Now showing items 6061-6080 of 9024
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Weak Thermal Vortex Rings
(The American Society of Mechanical Engineers (ASME), 1994)A simple mathematical model is proposed and a similarity solution is obtained to study the behavior of very weak thermal vortex rings induced by a horizontal line source of thermal energy in ... -
Determination and Characteristics of the Transition to Two-Phase Slug Flow in Small Horizontal Channels
(The American Society of Mechanical Engineers (ASME), 1994)Two-phase pressure drop and fluctuating static pressures were measured in a small horizontal rectangular channel (hydraulic diameter = 5.44 mm). The two-phase fluid was an air/water mixture at ... -
Discussion: “A Behavioral Model for the Fracture of Surface Hardened Components” (Ebert, L. J., Krotine, F. T., and Troiano, A. R., 1965, ASME J. Basic Eng., 87, pp. 871–874)
(The American Society of Mechanical Engineers (ASME), 1966) -
Analysis of Linear Encroachment in Two-Immiscible Fluid Systems in a Porous Medium
(The American Society of Mechanical Engineers (ASME), 1994)The flow of two immiscible fluids in a porous medium was analyzed accounting for boundary and inertia effects. This problem was first solved by Muskat using Darcy’s equation for fluid flow ... -
Interpreting Vortex Interactions With a Free Surface
(The American Society of Mechanical Engineers (ASME), 1994)An understanding of the process by which vorticity interacts with a free surface is sought by analytical examination of the free-surface condition for the vorticity flux. A novel mechanism is ... -
Development of a k-ε Model for Bubbly Two-Phase Flow
(The American Society of Mechanical Engineers (ASME), 1994)An extension of the k-ε model for bubbly two-phase flow is proposed and tested against experimental data. The basic assumption made is that the shear-induced turbulence and bubble-induced ... -
Mass Imbalance Error of Waterhammer Equations and Leak Detection
(The American Society of Mechanical Engineers (ASME), 1994)The waterhammer equations can be used to compute mass inventory changes for pipeline leak detection. In such applications the pipeline is monitored continuously in time and there is no clear ... -
Efficient Simulation of Short and Long-Wave Interactions With Applications to Capillary Waves
(The American Society of Mechanical Engineers (ASME), 1994)A perturbation expansion and a multigrid technique are developed for simulating the fully-nonlinear unsteady-interaction of short waves riding on long gravity waves. Both numerical techniques are ... -
Experimental Results for the Rotordynamic Characteristics of Leakage Flows in Centrifugal Pumps
(The American Society of Mechanical Engineers (ASME), 1994)In recent years, increasing attention has been given to fluid-structure interaction problems in turbomachines. The present research focuses on just one such fluid-structure interaction problem, ... -
Performance Prediction by Viscous Flow Analysis for Francis Turbine Runner
(The American Society of Mechanical Engineers (ASME), 1994)Validation of a three-dimensional computational algorithm for viscous flow analysis has been conducted for two types of Francis turbine runner geometry, one low head and one high head, using ... -
An Investigation of Nucleating Flows of Stream in a Cascade of Turbine Blading—Wake Traverses
(The American Society of Mechanical Engineers (ASME), 1994)During the course of expansion in turbines, steam first supercools and then nucleates to become a two-phase mixture consisting of a very large number of minute droplets suspended in the parent ... -
The Initialization of Vortical Free-Surface Flows
(The American Society of Mechanical Engineers (ASME), 1994)Numerical simulations of vortical free-surface flows are prone to developing spurious high-frequency dispersive waves unless the flow field is given sufficient time to adjust. At low Froude ... -
The Prediction of Velocity and Temperature Profiles in Gravity Currents for Use in Chilled Water Storage Tanks
(The American Society of Mechanical Engineers (ASME), 1994)It has been demonstrated that one way of producing thin thermoclines (temperature gradients) in a chilled water storage tank is by introducing the water horizontally in the form of a gravity ... -
Comparison of the Triple-Deck Theory, Interactive Boundary Layer Method, and Navier-Stokes Computation for Marginal Separation
(The American Society of Mechanical Engineers (ASME), 1994)The steady two-dimensional marginal separation of an incompressible boundary layer flow within a channel was solved independently by three different methods: the triple-deck method of marginal ... -
Separated-Reattaching Flow Over a Backstep With Uniform Normal Mass Bleed (Data Bank Contribution)
(The American Society of Mechanical Engineers (ASME), 1994)The effect of normal mass bleed into the separated-reattaching flow behind a backward-facing step has been experimentally investigated. Results of LDA measurements showed that normal mass bleed ... -
Toward a Pointwise Turbulence Model for Wall-Bounded and Free Shear Flows
(The American Society of Mechanical Engineers (ASME), 1994)A modified version of the Baldwin-Barth k-ℜ two-equation turbulence model is proposed, in which the near-wall function fμ is based on the ratio of the large eddy and the Kolmogorov time scales. ... -
Cavity Flow Predictions Based on the Euler Equations
(The American Society of Mechanical Engineers (ASME), 1994)An Euler solver based on artificial-compressibility and pseudo-time stepping is developed for the analysis of partial sheet cavitation in two-dimensional cascades and on isolated airfoils. The ... -
Discussion: “Experimental Observations on the Flow Past a Plano-Convex Hydrofoil” (Wade, R. B., and Acosta, A. J., 1966, ASME J. Basic Eng., 88, pp. 273–282)
(The American Society of Mechanical Engineers (ASME), 1966) -
Steady Laminar Fluid Flow Through Variable Constrictions in Vascular Tube
(The American Society of Mechanical Engineers (ASME), 1994)Steady laminar flow fields in the neighborhoods of two consecutive constrictions in a vascular tube were studied for approaching Reynolds number Re in the range of 5 to 200. The upstream ... -
Origin and Decay of Longitudinal Vortices in Developing Flow in a Curved Rectangular Duct (Data Bank Contribution)
(The American Society of Mechanical Engineers (ASME), 1994)Developing turbulent flow in a 90 deg curved duct of rectangular cross-section, and an aspect ratio of 6, was investigated. Mean-velocity and Reynolds-stress components were measured using a ...