Journal of Fluids Engineering: Recent submissions
Now showing items 4321-4340 of 9024
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Experimental Investigation and Modeling of Inertance Tubes
(The American Society of Mechanical Engineers (ASME), 2005)Growing interest in larger scale pulse tubes has focused attention on optimizing their thermodynamic efficiency. For Stirling-type pulse tubes, the performance is governed by the phase difference ... -
Recent Advances in Numerical Methods for Fluid Dynamics and Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2005)Computational fluid dynamics (CFD) tools are the key for modern understanding of many physical, electrochemical, and biological processes. They not only help explain complex events involving ... -
A Numerical Model for the Mist Dynamics and Heat Transfer at Various Ambient Pressures
(The American Society of Mechanical Engineers (ASME), 2005)A numerical model is developed to simulate the dynamics of the droplet-wall interaction and heat transfer mechanisms at sub-atmospheric to elevated ambient pressures, and for surface temperatures ... -
Fast and Accurate Solutions of Steady Stokes Flows Using Multilevel Boundary Element Methods
(The American Society of Mechanical Engineers (ASME), 2005)Most recently, we have developed a novel multilevel boundary element method (MLBEM) for steady Stokes flows in irregular two-dimensional domains (Grigoriev, M.M., and Dargush, G.F., Comput. Methods. ... -
Adaptive Wavelet Method for Incompressible Flows in Complex Domains
(The American Society of Mechanical Engineers (ASME), 2005)An adaptive wavelet-based method provides an alternative means to refine grids according to local demands of the physical solution. One of the prominent challenges of such a method is the ... -
High-Pass Filtered Eddy-Viscosity Models for Large-Eddy Simulations of Compressible Wall-Bounded Flows
(The American Society of Mechanical Engineers (ASME), 2005)In this contribution we consider large-eddy simulation (LES) using the high-pass filtered (HPF) Smagorinsky model of a spatially developing supersonic turbulent boundary layer at a Mach number ... -
Implementation of a Level Set Interface Tracking Method in the FIDAP and CFX-4 Codes
(The American Society of Mechanical Engineers (ASME), 2005)We present a streamline-upwind–Petrov-Galerkin (SUPG) finite element level set method that may be implemented into commercial computational fluid dynamics (CFD) software, both finite element (FE) ... -
Influence of Lateral Walls on Peristaltic Flow in a Rectangular Duct
(The American Society of Mechanical Engineers (ASME), 2005)The flow of a viscous fluid due to symmetric peristaltic waves propagating on the horizontal sidewalls of a rectangular duct is studied under the assumptions of long wavelength and low Reynolds ... -
Investigation of the Large-Scale Flow Structures in the Cooling Jets Used in the Blown Film Manufacturing Process
(The American Society of Mechanical Engineers (ASME), 2005)The development of the flow field produced by concentric jets used in the blown-film manufacturing process was studied experimentally using hot wire anemometry. It was found that the inner jet ... -
Computational Study of the Wake and Contaminant Transport of a Walking Human
(The American Society of Mechanical Engineers (ASME), 2005)The unsteady aerodynamic wake of a human is studied using a time-accurate computational fluid dynamics simulation. Transport of a scalar contaminant, which originates on the body, is also ... -
Propeller Cavitation Study Using an Unstructured Grid Based Navier-Stoker Solver
(The American Society of Mechanical Engineers (ASME), 2005)The cavitating flow around a marine propeller is studied using an unstructured grid based Reynolds-averaged Navier-Stokes computational fluid dynamics method. A cavitation model based on a ... -
Propeller Cavitation Breakdown Analysis
(The American Society of Mechanical Engineers (ASME), 2005)A Reynolds-averaged Navier-Stokes computational model of homogeneous multiphase flow is presented. Cavitation driven thrust and torque breakdown over a wide range of advance ratios is modeled for ... -
Characterization of the Hydrodynamically Developing Flow in a Microtube Using MTV
(The American Society of Mechanical Engineers (ASME), 2005)Micro-molecular tagging velocimetry (μMTV) has been used to characterize the hydrodynamic developing flow in a microtube inlet with a nominal inner diameter of 180μm. Velocity profile data at ... -
Variation of Wall Shear Stress and Periodic Oscillations Induced in the Right-Angle Branch During Laminar Steady Flow
(The American Society of Mechanical Engineers (ASME), 2005)We report on flow phenomena such as wall shear stress and periodic oscillations that occur in the right-angle branch during laminar steady flow in the upstream trunk. The side-branch bifurcates ... -
Theoretical Analysis of Experimentally Observed Perplexing Calibration Characteristics of Ball-in-Vortex Flow-Meter
(The American Society of Mechanical Engineers (ASME), 2005)This investigation analyzes the calibration nonlinearity of the ball-in-vortex flow-meter, designed to work on the principle of a rotating sphere in and due to a vortex flow. The comparison of ... -
DNS of Drag-Reducing Turbulent Channel Flow With Coexisting Newtonian and Non-Newtonian Fluid
(The American Society of Mechanical Engineers (ASME), 2005)In the present study, we numerically investigated drag-reducing turbulent channel flows by surfactant additives. Surfactant additives were assumed to be uniformly distributed in the entire flow ... -
The Use of Solution Adaptive Grid for Modeling Small Scale Turbulent Structures
(The American Society of Mechanical Engineers (ASME), 2005)The use of large eddy simulation (LES) is computationally intensive and various studies demonstrated the considerable range of vortex scales to be resolved in an LES type of simulation. The ... -
Numerical Investigations of Turbulent Inflow Condition Generation for LES
(The American Society of Mechanical Engineers (ASME), 2005)Imposing realistic inlet conditions for Direct and Large-Eddy Simulation of spatially developing flow is extremely challenging, and requires careful considerations, especially for fully turbulent ... -
Two-phase Flow in Jet Pumps for Different Liquids
(The American Society of Mechanical Engineers (ASME), 2005)This research was performed to determine the performance of a jet pump when the viscosity and density of the primary (or power) liquid are different from the viscosity and density of the ... -
Comments on Reynolds Number Definition for the Discharge of non-Newtonian Liquids from Tanks
(The American Society of Mechanical Engineers (ASME), 2005)The discharge of non-Newtonian liquids from tanks is a subject of very few publications, e.g. Refs. 1-2. In Ref. 1, the correlation equation for the coefficient of gravitational discharge of ...