Journal of Fluids Engineering: Recent submissions
Now showing items 2821-2840 of 9024
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An Experimental Study of Horizontal Self-Excited Pneumatic Conveying
(The American Society of Mechanical Engineers (ASME), 2012)A new pneumatic conveying system that applies soft fins mounted vertically on a center plane of pipe in the inlet of the gas-particle mixture is developed to reduce power consumption and ... -
Numerical Simulation of Cavity Shedding from a Three-Dimensional Twisted Hydrofoil and Induced Pressure Fluctuation by Large-Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2012)Simulation of cavity shedding around a three-dimensional twisted hydrofoil has been conducted by large eddy simulation coupling with a mass transfer cavitation model based on the Rayleigh-Plesset ... -
Numerical Investigations of Passive Scalar Transport in Turbulent Taylor-Couette Flows: Large Eddy Simulation Versus Direct Numerical Simulations
(The American Society of Mechanical Engineers (ASME), 2012)The highly turbulent flow occurring inside (electro)chemical reactors requires accurate simulation of scalar mixing if computational fluid dynamics (CFD) methods are to be used with confidence in ... -
Peristaltic Flow of a Carreau Fluid in a Rectangular Duct
(The American Society of Mechanical Engineers (ASME), 2012)In the present investigation we have studied the peristaltic flow of a Carreau fluid in a rectangular duct. The flow is investigated in the wave frame of reference moving with the velocity ... -
Numerical Investigations of the Gas Flow Inside the Bassoon
(The American Society of Mechanical Engineers (ASME), 2012)This work is devoted to the numerical investigation of the gas flow inside a bassoon while it is played. The digitized geometry for the simulations is taken from measurements using laser scan ... -
Internal Flow and Axial Thrust Balancing of a Rocket Pump
(The American Society of Mechanical Engineers (ASME), 2012)Large axial thrust is produced on the rotor assembly of high-pressure rocket pumps. Thus, to ensure the reliability of bearings supporting the high rotational speed rotor, precise axial thrust ... -
Computational Fluid Dynamics-Based Design Optimization for an Implantable Miniature Maglev Pediatric Ventricular Assist Device
(The American Society of Mechanical Engineers (ASME), 2012)Computational fluid dynamics (CFD)-based design optimization was applied to achieve the finalized design of the PediaFlow® PF4, a magnetically levitated rotodynamic pediatric ventricular assist ... -
Discharge Imbalance Mitigation in Francis Turbine Draft-Tube Bays
(The American Society of Mechanical Engineers (ASME), 2012)Rehabilitation of ageing power plant is a growing market with specific needs: we have to deal with non up-to-date elements in terms of hydraulic behavior. Refurbishment projects are often focused ... -
Development and Validation of a Reduced Critical Radius Model for Cryogenic Cavitation
(The American Society of Mechanical Engineers (ASME), 2012)Cryogenic fluids such as liquid hydrogen, liquid oxygen, and liquid methane have often been used as liquid rocket propellants, and it is well known that the suction performance of turbopump ... -
Inlet and Outlet Pressure-Drop Effects on the Determination of Permeability and Form Coefficient of a Porous Medium
(The American Society of Mechanical Engineers (ASME), 2012)The determination of permeability K and form coefficient C, defined by the Hazen-Dupuit-Darcy (HDD) equation of flow through a porous medium, requires the measurement of the total pressure drop ... -
Friction and Thermal Characteristics of Laminar Flow of Viscous Oil Through a Circular Tube Having Axial Corrugations and Fitted With Helical Screw-Tape Inserts
(The American Society of Mechanical Engineers (ASME), 2012)The experimental friction factor and Nusselt number data for a laminar flow through a circular duct having axial corrugation and fitted with helical screw-tape inserts have been presented. ... -
Effect of Ground Arrangements on Swirling Flow in a Rectangular Duct Subjected to Electrohydrodynamic Effects
(The American Society of Mechanical Engineers (ASME), 2012)This study presents a numerical analysis of electric fields distribution, characteristics of swirling flow and effect of inlet velocity (u0 ) from two ground arrangements, i.e., wire-to-wire (WW) ... -
Numerical Analysis of Viscoelastic Fluids in Steady Pressure-Driven Channel Flow
(The American Society of Mechanical Engineers (ASME), 2012)The developing steady flow of Oldroyd-B and Phan-Thien-Tanner (PTT) fluids through a two-dimensional rectangular channel is investigated computationally by means of a finite volume technique ... -
A Compressible Permeation Approach to Elastomeric Space Seal Characterization
(The American Society of Mechanical Engineers (ASME), 2012)The development of elastomeric face seals is imperative for NASA’s manned space flight program. Lacking in the development of state-of-the-art space seals was a technique for predicting the ... -
Control of Cavity Flow Oscillations by High Frequency Forcing
(The American Society of Mechanical Engineers (ASME), 2012)Time resolved two-dimensional particle image velocimetry (2DPIV) experiments have been conducted to contribute to the understanding of the physics governing the suppression mechanism of cavity flow ... -
Can the Dean number Alone Characterize Flow Similarity in Differently Bent Tubes?
(The American Society of Mechanical Engineers (ASME), 2012)Although flows of fluids in curved channels belong to a classical problem of fluid dynamics, most publications are restricted to investigations of flows in tube coils, or in single bends. This ... -
The Effects of a Tripped Turbulent Boundary Layer on Vortex Shedding from a Blunt Trailing Edge Hydrofoil
(The American Society of Mechanical Engineers (ASME), 2012)Experiments on vortex shedding from a blunt trailing edge symmetric hydrofoil operating at zero angle of attack in a uniform high speed flow, Reh=16.1·103-96.6·103, where the reference ... -
The Shear-Driven Fluid Motion Using Oscillating Boundaries
(The American Society of Mechanical Engineers (ASME), 2012)A classical Stokes’ second problem has been known for a long time and represents one of the few exact solutions of nonlinear Navier-Stokes equations. However, oscillatory flow in a semi-infinite ... -
Time-Dependent Deposition of Micro- and Nanofibers in Straight Model Airways
(The American Society of Mechanical Engineers (ASME), 2012)In this paper, we increase the understanding of the influence of the breathing pattern on the fate of inhaled non-spherical micro and nanoparticles and examine the accuracy of replacing the ... -
An Inflow Method for Axisymmetric Turbulent Boundary Layers Along Very Long Slender Cylinders
(The American Society of Mechanical Engineers (ASME), 2012)Generating acceptable inflow conditions for the turbulent boundary layer (TBL) growth along long thin cylinders is a challenging task. Previous production methods such as rescale/recycling, artificial ...