Journal of Fluids Engineering: Recent submissions
Now showing items 4721-4740 of 9024
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Models for Analysis of Water Hammer in Piping With Entrapped Air
(The American Society of Mechanical Engineers (ASME), 2002)Water hammer transients in a pipe line with an entrapped air pocket are analyzed with three one-dimensional models of varying complexity. The most simple model neglects the influence of gas-liquid ... -
Modification of Near-Wall Structure in a Shear-Driven 3-D Turbulent Boundary Layer
(The American Society of Mechanical Engineers (ASME), 2002)The near-wall physics of a planar, shear-driven, 3-D turbulent boundary layer with varying strengths of crossflow are examined. Flow visualization data reveals a reduction of mean streak length ... -
Application of Boundary Layer Fences and Vortex Generators in Improving Performance of S-Duct Diffusers
(The American Society of Mechanical Engineers (ASME), 2002)An experimental investigation was undertaken to study the effect of various fences and vortex generator configurations in reducing the exit flow distortion and improving total pressure recovery ... -
A Finite-Mode PDF Model for Turbulent Reacting Flows
(The American Society of Mechanical Engineers (ASME), 2002)The recently proposed multi-environment model, R. O. Fox, 1998, “On the Relationship between Lagrangian Micromixing Models and Computational Fluid Dynamics,” Chem. Eng. Proc., Vol. 37, pp. 521–535. ... -
Study of Wake-Blade Interactions in a Transonic Compressor Using Flow Visualization and DPIV
(The American Society of Mechanical Engineers (ASME), 2002)Flow-field interactions are studied in a high-through-flow, axial-flow transonic compressor using Digital Particle Image Velocimetry (DPIV). Measurement of instantaneous velocities in two-dimensional ... -
On the Theoretical Prediction of Fuel Droplet Size Distribution in Nonreactive Diesel Sprays
(The American Society of Mechanical Engineers (ASME), 2002)Droplet size distribution function and mean diameter formulas are derived using information theory. The effects of fuel droplet evaporation and coalescence within combustion chamber on the droplet ... -
Quantifying Uncertainty in CFD
(The American Society of Mechanical Engineers (ASME), 2002)There has been recently an intense interest in verification and validation of large-scale simulations and in quantifying uncertainty, and several workshops have been organized to address this ... -
Probabilistic Modeling of Flow Over Rough Terrain
(The American Society of Mechanical Engineers (ASME), 2002)This paper presents a method for the propagation of uncertainty, modeled in a probabilistic framework, through a model-based simulation of rainflow on a rough terrain. The adopted model involves ... -
Normal Stresses on the Surface of a Rigid Body in an Oldroyd-B Fluid
(The American Society of Mechanical Engineers (ASME), 2002)In this note we present a proof showing that the contribution from the extra stress tensor to the normal component of the stress on the surface of a moving rigid body in an incompressible ... -
Approach for Input Uncertainty Propagation and Robust Design in CFD Using Sensitivity Derivatives
(The American Society of Mechanical Engineers (ASME), 2002)An implementation of the approximate statistical moment method for uncertainty propagation and robust optimization for quasi 1-D Euler CFD code is presented. Given uncertainties in statistically ... -
Rotating Cavitation in a Centrifugal Pump Impeller of Low Specific Speed
(The American Society of Mechanical Engineers (ASME), 2002)The paper describes an experimental investigation of two similar centrifugal pump impellers of low specific speed. Both impellers show rotating cavitation over a wide range of part load operating ... -
Verification of Finite Volume Computations on Steady-State Fluid Flow and Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2002)This work presents a post-processing tool for the verification of steady-state fluid flow and heat transfer finite volume computations. It is based both on the generalized Richardson extrapolation ... -
Performance Analysis of Cavitating Flow in Centrifugal Pumps Using Multiphase CFD
(The American Society of Mechanical Engineers (ASME), 2002)A multi-phase CFD method is used to analyze centrifugal pump performance under developed cavitating conditions. The differential model employed is the homogeneous two-phase Reynolds-Averaged-Navier-Stokes ... -
Uncertainty Quantification for Multiscale Simulations1
(The American Society of Mechanical Engineers (ASME), 2002)A general discussion of the quantification of uncertainty in numerical simulations is presented. A principal conclusion is that the distribution of solution errors is the leading term in the ... -
Erratum: “Some Properties of Laminar Boundary Layers on Curved Surfaces” (Journal of Basic Engineering, 1968, 90, pp. 301–312)
(The American Society of Mechanical Engineers (ASME), 1968) -
Numerical Turbulent Simulation of the Two-Phase Flow (Liquid/Gas) Through a Cascade of an Axial Pump
(The American Society of Mechanical Engineers (ASME), 2002)The main goal of the present work is to establish the analysis of a numerical turbulent simulation of an axial pump cascade under two-phase flow presence of liquid and gas, coupled with the ... -
Boundary Element Grid Optimization for Stokes Flow With Corner Singularities
(The American Society of Mechanical Engineers (ASME), 2002)The accuracy of boundary-element methods for computing Stokes flow past boundaries with sharp corners where singularities occur is discussed. To resolve the singular behavior, a graded mesh of ... -
Stochastic Modeling of Flow-Structure Interactions Using Generalized Polynomial Chaos
(The American Society of Mechanical Engineers (ASME), 2002)We present a generalized polynomial chaos algorithm to model the input uncertainty and its propagation in flow-structure interactions. The stochastic input is represented spectrally by employing ... -
Theoretical Analysis of Fluid Forces on an Open-Type Centrifugal Impeller in Whirling Motion
(The American Society of Mechanical Engineers (ASME), 2002)For turbomachines operating at supercritical shaft speed, it is important to understand the characteristics of unsteady fluid forces on the impeller that occur due to shaft vibration. The present ... -
Code Verification by the Method of Manufactured Solutions
(The American Society of Mechanical Engineers (ASME), 2002)Verification of Calculations involves error estimation, whereas Verification of Codes involves error evaluation, from known benchmark solutions. The best benchmarks are exact analytical solutions ...