Journal of Fluids Engineering: Recent submissions
Now showing items 4081-4100 of 9024
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A Multizone Moving Mesh Algorithm for Simulation of Flow Around a Rigid Body With Arbitrary Motion
(The American Society of Mechanical Engineers (ASME), 2006)In this paper, general motion of a two-dimensional body is modeled using a new moving mesh concept. Solution domain is divided into the three zones. The first zone, with a circular boundary, ... -
Three-Dimensional Flow of a Newtonian Liquid Through an Annular Space with Axially Varying Eccentricity
(The American Society of Mechanical Engineers (ASME), 2006)Flow in annular space occurs in drilling operation of oil and gas wells. The correct prediction of the flow of the drilling mud in the annular space between the well wall and the drill ... -
Theoretical Analysis on the Secondary Flow in a Rotating Helical Pipe With an Elliptical Cross Section
(The American Society of Mechanical Engineers (ASME), 2006)In the present study, the flow in a rotating helical pipe with an elliptical cross section is considered. The axes of the elliptical cross section are in arbitrary directions. Using the ... -
All-Speed Time-Accurate Underwater Projectile Calculations Using a Preconditioning Algorithm
(The American Society of Mechanical Engineers (ASME), 2006)An algorithm based on the combination of time-derivative preconditioning strategies with low-diffusion upwinding methods is developed and applied to multiphase, compressible flows characteristic of ... -
Crack-Propagation Rate in 7075-T6 Plates Under Cyclic Tensile and Transverse Shear Loadings
(The American Society of Mechanical Engineers (ASME), 1969)Crack-propagation rate in 7075-T6 tension plates was determined for central cracks initially oriented in 45, 60, and 90 deg, to the width direction of the tension plates which were loaded ... -
Large-Eddy Simulation of Transition in a Separation Bubble
(The American Society of Mechanical Engineers (ASME), 2006)In this paper, large-eddy simulation of the transition process in a separation bubble is compared to experimental results. The measurements and simulations are conducted under low freestream ... -
Prediction of Fluid Inertance in Nonuniform Passageways
(The American Society of Mechanical Engineers (ASME), 2006)The dynamic response, stability, and noise characteristics of fluid components and systems can be strongly influenced by the inertance of the fluid in passageways, which are often of complex ... -
Electrohydrodynamics of Thin Flowing Films
(The American Society of Mechanical Engineers (ASME), 2006)Thin films of oil flowing down a nearly-vertical plate were subjected to a strong normal electrostatic field. Steady-state height profiles were measured by fluorescence imaging. For electrode ... -
On the Convergence of Higher Order Upwind Differencing Schemes for Tridiagonal Iterative Solution of the Advection-Diffusion Equation
(The American Society of Mechanical Engineers (ASME), 2006)In order to reduce numerical diffusion associated with first-order upwind differencing schemes (UDS), higher order upwind differencing schemes are often employed in computational fluid dynamics ... -
Effect of Channel Aspect Ratio on the Flow Performance of a Spiral-Channel Viscous Micropump
(The American Society of Mechanical Engineers (ASME), 2006)The paper investigates the effect of channel aspect ratio on the flow performance of a newly introduced spiral-channel viscous micropump. An approximate 2D analytical solution for the flow field, ... -
Modeling the Wall Pressure Spectrum in Turbulent Pipe Flows
(The American Society of Mechanical Engineers (ASME), 2006)An important source of vibration and noise in piping systems is the fluctuating wall pressure produced by the turbulent boundary layer. One approach to calculating the wall pressure fluctuations ... -
Review of Large-Eddy Simulation of Non-Premixed Turbulent Combustion
(The American Society of Mechanical Engineers (ASME), 2006)Recent developments in the methodology of large-eddy simulation applied to turbulent, reacting flows are reviewed, with specific emphasis on mixture-fraction-based approaches to nonpremixed reactions. ... -
Power Assessment of Flowing Compressed Air
(The American Society of Mechanical Engineers (ASME), 2006)This study proposes a new concept for quantifying the energy of flowing compressed air, called air power. Air power is defined as the work-producing potential of compressed air, and its ... -
Analysis and Modeling of the Vortex Amplifier
(The American Society of Mechanical Engineers (ASME), 1969)A model has been derived to predict the steady-state input-output characteristics of vortex amplifiers operating in the incompressible flow regime. The model was correlated with experimental data ... -
Numerical Simulations and Experimental Study of Liquid Metal Flow Around Sand Core
(The American Society of Mechanical Engineers (ASME), 2006)This paper presents the results of experimental and numerical studies of the hot distortion phenomenon in the phenolic urethane cold box systems used in metal casting. Dual Pushrod Dilatometry ... -
A Theoretical and Experimental Investigation of a Confined Vortex Oscillator
(The American Society of Mechanical Engineers (ASME), 1969)A theoretical and experimental study was carried out in both air and water of the forced and temporally periodic motion that occurs in a double input vortex chamber when two jets of nearly ... -
A Reconstruction Method for the Flow Past an Open Cavity
(The American Society of Mechanical Engineers (ASME), 2006)In this paper we propose a method to reconstruct the flow at a given time over a region of space using partial instantaneous measurements and full-space proper orthogonal decomposition (POD) ... -
Influence of Surface Roughness on the Aerodynamic Losses of a Turbine Vane
(The American Society of Mechanical Engineers (ASME), 2006)The effects of surface roughness on the aerodynamic performance of a turbine vane are investigated for three Mach number distributions, one of which results in transonic flow. Four turbine ... -
Power Law Turbulent Velocity Profile in Transitional Rough Pipes
(The American Society of Mechanical Engineers (ASME), 2006)Alternate power law velocity profile u+=Aζα in transitional rough pipe fully turbulent flow, has been proposed, in terms of new appropriate inner rough wall variables (ζ=Z+∕ϕ, uϕ=u∕ϕ), and new ... -
Anisotropy-Invariant Mapping of Turbulence in a Flow Past an Unswept Airfoil at High Angle of Attack
(The American Society of Mechanical Engineers (ASME), 2006)Turbulence investigations of the flow past an unswept wing at a high angle of attack are reported. Detailed predictions were carried out using large-eddy simulations (LES) with very fine grids ...