Journal of Fluids Engineering: Recent submissions
Now showing items 2801-2820 of 9024
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Measurement of Effective Bulk Modulus for Hydraulic Oil at Low Pressure
(The American Society of Mechanical Engineers (ASME), 2012)Oil properties are very important input parameters for the simulation of hydraulic components. Precise values of effective bulk modulus at low pressures are especially required to improve the ... -
Computational Fluid Dynamics Analysis of a Hydrokinetic Turbine Based on Oscillating Hydrofoils
(The American Society of Mechanical Engineers (ASME), 2012)The performance of a new concept of hydrokinetic turbine using oscillating hydrofoils to extract energy from water currents (tidal or gravitational) is investigated using URANS numerical simulations. ... -
Computational Fluid Dynamic Studies of Vortex Amplifier Design for the Nuclear Industry—II. Transient Conditions
(The American Society of Mechanical Engineers (ASME), 2012)In this paper computational fluid dynamics (CFD) techniques have been used to investigate the effect of changes to the geometry of a vortex amplifier (VXA) in the context of glovebox operations ... -
An Aerodynamic Investigation of an Isolated Stationary Formula 1 Wheel Assembly
(The American Society of Mechanical Engineers (ASME), 2012)The flowfield around a 60% scale stationary Formula 1 tire in contact with the ground in a closed wind tunnel at a Reynolds number of 500,000 was computationally examined in order to assess ... -
Low Pressure Turbine Relaminarization Bubble Characterization using Massively-Parallel Large Eddy Simulations
(The American Society of Mechanical Engineers (ASME), 2012)The separation and reattachment of suction surface boundary layer in a low pressure turbine is characterized using large-eddy simulation at Ress = 69000 based on inlet velocity and suction ... -
Characteristics of a Jet in the Vicinity of a Free Surface
(The American Society of Mechanical Engineers (ASME), 2012)In this study, the characteristics of a round turbulent jet in the vicinity of a free surface are investigated. The jet issued from a nozzle located at a depth five times the nozzle diameter ... -
Numerical and Experimental Study of the Interaction of a Spark-Generated Bubble and a Vertical Wall
(The American Society of Mechanical Engineers (ASME), 2012)An understanding of the fundamental mechanisms involved in the interaction between bubbles and structures is of importance for many applications involving cavitation erosion. Generally, the final ... -
Numerical Simulation of an Oscillating Cylinder Using Large Eddy Simulation and Implicit Large Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2012)In this work, we use large eddy simulation (LES) to study the influence of grid and subgrid model on the lift and drag force predictions of a fixed cylinder undergoing streamwise sinusoidal ... -
On the Volume Fraction Effects of Inertial Colliding Particles in Homogeneous Isotropic Turbulence
(The American Society of Mechanical Engineers (ASME), 2012)The main objective of the present study is the investigation of volume fraction effects on the collision statistics of nonsettling inertial particles in a granular medium as well as suspended ... -
Vortical Structures and Instability Analysis for Athena Wetted Transom Flow with Full-Scale Validation
(The American Society of Mechanical Engineers (ASME), 2012)Vortical structures and associated instabilities of appended Athena wetted transom flow in full-scale conditions are studied using DES to explain the source of dominant transom flow frequency, ... -
A Review of External Hydrodynamics With Experimental Data Assessment for Low-Speed Ocean Flows
(The American Society of Mechanical Engineers (ASME), 2012)This article describes a literature review focused on published empirical measurements of external flows over bodies of revolution that can be employed for verification and validation of calculations ... -
The Effect of Spanwise Width on Rectangular Jets With Sidewalls
(The American Society of Mechanical Engineers (ASME), 2012)A CFD study on the effect of spanwise width on a rectangular jet with sidewalls is conducted using a standard k-ɛ model with wall functions. An order of magnitude analysis reveals the role ... -
Preliminary Design and Performance Estimation of Radial Inflow Turbines: An Automated Approach
(The American Society of Mechanical Engineers (ASME), 2012)A comprehensive one-dimensional meanline design approach for radial inflow turbines is described in the present work. An original code was developed in Python that takes a novel approach to the ... -
Optimal Tandem Configuration for Oscillating-Foils Hydrokinetic Turbine
(The American Society of Mechanical Engineers (ASME), 2012)A numerical investigation based on 2D URANS simulations is performed in order to seek an optimal spatial configuration for two oscillating foils within a hydrokinetic turbine. The objective of ... -
Numerical Analysis of Droplet Dynamics Under Different Temperature and Cross-Flow Velocity Conditions
(The American Society of Mechanical Engineers (ASME), 2012)Numerical investigations have been performed to investigate the dynamics of a single liquid droplet formation in another immiscible cross-flow liquid for different values of cross-flow velocities ... -
Mixing Analysis in a Lid-Driven Cavity Flow at Finite Reynolds Numbers
(The American Society of Mechanical Engineers (ASME), 2012)The influence of inertial effects on chaotic advection and mixing is investigated for a two-dimensional, time-dependent lid-driven cavity flow. Previous work shows that this flow exhibits exponential ... -
Computational Fluid Dynamics Modeling of Benjamin and Taylor Bubbles in Two-Phase Flow in Pipes
(The American Society of Mechanical Engineers (ASME), 2012)There is an increasing interest in applying three-dimensional computational fluid dynamics (CFD) for multiphase flow transport in pipelines, e.g., in the oil and gas industry. In this study, the ... -
Low Field in the Vaned Diffuser of a Centrifugal Pump at Different Vane Setting Angles
(The American Society of Mechanical Engineers (ASME), 2012)Particle image velocimetry (2D-PIV) has been used for the investigation of the time and phase-averaged flow field inside the vaned diffuser of a centrifugal pump operating at the best efficiency ... -
Thin-Film Flow of a Power-Law Fluid Down an Inclined Plane
(The American Society of Mechanical Engineers (ASME), 2012)An analysis is presented for two-dimensional flow of a thin layer of power-law fluid down an inclined plane. Integration of the equations of motion using lubrication approximations shows that ... -
Model of Droplet Impingement Based on Least-Squares Solution of Proper Orthogonal Decomposition Basis Matrices
(The American Society of Mechanical Engineers (ASME), 2012)A reduced order model of the surface profiles of droplets impinging on a flat surface is presented based on axisymmetric, transient computational fluid dynamics (CFD). The free surfaces resulting ...