Journal of Fluids Engineering: Recent submissions
Now showing items 4801-4820 of 9024
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Discussion: “Comprehensive Approach to Verification and Validation of CFD Simulations—Part 1: Methodology and Procedures” (Stern, F., Wilson, R. V., Coleman, H. W., and Paterson, E. G., 2001, ASME J. Fluids Eng., 123, pp. 793–802)
(The American Society of Mechanical Engineers (ASME), 2002)The paper by Stern et al. proposes a comprehensive approach to verification and validation of computational fluid dynamics simulations. Although the authors present a new perspective for quantifying ... -
On Homogenization-Based Methods for Large-Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2002)The ability to predict complex engineering flows is limited by the available turbulence models and the present-day computer capacity. In Reynolds averaged numerical simulations (RANS), which is ... -
Detached-Eddy Simulations and Reynolds-Averaged Navier-Stokes Simulations of Delta Wing Vortical Flowfields
(The American Society of Mechanical Engineers (ASME), 2002)An understanding of vortical structures and vortex breakdown is essential for the development of highly maneuverable vehicles and high angle of attack flight. This is primarily due to the ... -
A Methodology for Simulations of Complex Turbulent Flows
(The American Society of Mechanical Engineers (ASME), 2002)A new flow simulation methodology (FSM) for computing turbulent shear flows is presented. The development of FSM was initiated in close collaboration with C. Speziale (then at Boston University). ... -
Numerical Simulation of Droplet Flows and Evaluation of Interfacial Area
(The American Society of Mechanical Engineers (ASME), 2002)Droplet flows with coalescence and breakup are simulated numerically using the lattice Boltzmann method. It is shown that the rising velocities are in good agreement with those obtained by the ... -
Application of Fractional Calculus to Fluid Mechanics
(The American Society of Mechanical Engineers (ASME), 2002)In this note we present the application of fractional calculus, or the calculus of arbitrary (noninteger) differentiation, to the solution of time-dependent, viscous-diffusion fluid mechanics ... -
Numerical Investigation of Flow Past a Prolate Spheroid
(The American Society of Mechanical Engineers (ASME), 2002)The flowfield around a 6:1 prolate spheroid at angle of attack is predicted using solutions of the Reynolds-averaged Navier-Stokes (RANS) equations and detached-eddy simulation (DES). The calculations ... -
Detached-Eddy Simulation With Compressibility Corrections Applied to a Supersonic Axisymmetric Base Flow
(The American Society of Mechanical Engineers (ASME), 2002)Detached-eddy simulation is applied to an axisymmetric base flow at supersonic conditions. Detached-eddy simulation is a hybrid approach to modeling turbulence that combines the best features of ... -
Liquid Film Atomization on Wall Edges—Separation Criterion and Droplets Formation Model
(The American Society of Mechanical Engineers (ASME), 2002)In order to predict the fuel mixture preparation inside the cylinder of port fuel injection engines, a model for the aerodynamic stripping of the fuel film deposited on the manifold walls is ... -
Large-Eddy Simulation on Curvilinear Grids Using Compact Differencing and Filtering Schemes
(The American Society of Mechanical Engineers (ASME), 2002)This work investigates the application of a high-order finite difference method for compressible large-eddy simulations on stretched, curvilinear and dynamic meshes. The solver utilizes 4th and ... -
Discussion: “An Extension of the Woods’ Theory for Unsteady Cavity Flows” (Kelly, H. R., 1967, ASME J. Basic Eng., 89, pp. 789–806)
(The American Society of Mechanical Engineers (ASME), 1968) -
Recent Progress on MILES for High Reynolds Number Flows
(The American Society of Mechanical Engineers (ASME), 2002)A promising large-eddy simulation (LES) approach is monotonically integrated LES (MILES) which involves solving the Navier-Stokes equations using high-resolution monotone algorithms. In MILES, the ... -
Implicit Turbulence Modeling for High Reynolds Number Flows
(The American Society of Mechanical Engineers (ASME), 2002)Implicit turbulence modeling is the numerical simulation of high Reynolds fluid flow using nonoscillatory finite volume (NFV) schemes without any explicit subgrid scale model. Here we investigate ... -
Alternative LES and Hybrid RANS/LES for Turbulent Flows
(The American Society of Mechanical Engineers (ASME), 2002)After more than 30 years of intense research on large-eddy simulations (LES) of turbulent flows based on eddy-viscosity subfilter models, 1, there is now consensus that such an approach is ... -
Pressure Drops of Water Flow Through Micromachined Particle Filters
(The American Society of Mechanical Engineers (ASME), 2002)When the particle is in the order of microns, flow through the small opening produces a large velocity gradient, leading to high viscous dissipation. Understanding the flow field is critical ... -
Coarse Resolution Turbulence Simulations With Spectral Vanishing Viscosity—Large-Eddy Simulations (SVV-LES)
(The American Society of Mechanical Engineers (ASME), 2002)We present a new implementation of the spectral vanishing viscosity method appropriate for alternative formulations of large-eddy simulations. We first review the method and subsequently present ... -
Computing Blunt Body Flows on Coarse Grids Using Vorticity Confinement
(The American Society of Mechanical Engineers (ASME), 2002)Over the last few years, a new flow computational methodology, vorticity confinement, has been shown to be very effective in treating concentrated vortical regions. These include thin vortex ... -
Large-Eddy Simulation of Supersonic Flat-Plate Boundary Layers Using the Monotonically Integrated Large-Eddy Simulation (MILES) Technique
(The American Society of Mechanical Engineers (ASME), 2002)A supersonic flat-plate boundary layer at a Reynolds number of 2×104 based on the inflow boundary layer thickness is investigated at different Mach numbers (M=2.88 and 4) using the ... -
Subgrid-Scale Modeling of Turbulent Convection Using Truncated Navier-Stokes Dynamics
(The American Society of Mechanical Engineers (ASME), 2002)Using concepts from the subgrid-scale estimation modeling we develop a procedure for large-eddy simulations which employs Navier-Stokes equations truncated to an available mesh resolution. Operationally ... -
Air Entrainment Effects on the Pressure Transients of Pumping Systems With Weir Discharge Chamber
(The American Society of Mechanical Engineers (ASME), 2002)This paper presents a new model for the study of air entrainment on the extreme pressure surges in pumping systems. For the present fluid system considered with a weir discharge chamber, ...