Journal of Fluids Engineering: Recent submissions
Now showing items 6501-6520 of 9024
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Study of Branched Turboprop Inlet Ducts Using a Multiple Block Grid Calculation Procedure
(The American Society of Mechanical Engineers (ASME), 1992)An important requirement in the design of an inlet duct of a turboprop engine is the ability to provide foreign object damage protection. A possible method for providing this protection is ... -
Novel Optical Fiber Installation by Use of Spiral Airflow
(The American Society of Mechanical Engineers (ASME), 1992)A high performance apparatus for installing optical fiber has been developed. With this apparatus, a 2 mm-diameter optical fiber was blown through a 6 mm-diameter rolled tube over a distance ... -
Boundary-Layer Transition in Accelerating Flows With Intense Freestream Turbulence: Part 2—The Zone of Intermittent Turbulence
(The American Society of Mechanical Engineers (ASME), 1992)Hot-wire anemometry was employed to examine the laminar-to-turbulent transition of low-speed, two-dimensional boundary layers for two (moderate) levels of flow acceleration and various levels of ... -
A Three-Layer Model for Separated Turbulent Flows
(The American Society of Mechanical Engineers (ASME), 1992)A model for turbulent backflows is presented and evaluated. The model is based on experimental observations, in particular, the wake-like behavior of the turbulence and the diffusion/dissipation ... -
On the Organization of Flow and Heat Transfer in the Near Wake of a Circular Cylinder in Steady and Pulsed Flow
(The American Society of Mechanical Engineers (ASME), 1992)Skin friction, pressure, and heat transfer gages are employed to monitor the flow and heat transfer field along the periphery of a circular cylinder in steady and pulsed flow at Reynolds ... -
Three-Dimensional Flow Patterns in Two-Dimensional Wakes
(The American Society of Mechanical Engineers (ASME), 1992)The development of three-dimensional patterns in the wake of two-dimensional objects is examined from the point of view of hydrodynamic stability. It is first shown that for parallel shear ... -
A Comparison of Turbulent Boundary Layer Wall-Pressure Spectra
(The American Society of Mechanical Engineers (ASME), 1992)Turbulent boundary layer wall-pressure spectra from various experimental investigations and a recent numerical simulation are presented. The spectra are compared in nondimensional form with three ... -
Gas-Solid Flow in a Fluidically Oscillating Jet
(The American Society of Mechanical Engineers (ASME), 1992)The motion of air and solid particles is examined in a fluidically oscillating slot jet using time-averaged and cycle-resolved laser Doppler anemometry measurements. These measurements reveal the ... -
Simulation of the Strongly Swirling Aerodynamic Field in a Vortex Combustor
(The American Society of Mechanical Engineers (ASME), 1992)This paper presents the simulation of the strongly swirling aerodynamic field in a coal-fired vortex combustor (VC) recently developed for commercial heating applications. A new version of algebraic ... -
Phase Discrimination in Gas-Particle Flows Using Thermal Anemometry
(The American Society of Mechanical Engineers (ASME), 1992)A technique to measure gas-phase turbulence modification by micron-sized particles with thermal anemometry is presented. Bridge output is first digitized and then spikes produced by particle ... -
Boundary-Layer Transition in Accelerating Flows With Intense Freestream Turbulence: Part 1—Disturbances Upstream of Transition Onset
(The American Society of Mechanical Engineers (ASME), 1992)Hot-wire anemometry was employed to examine the laminar-to-turbulent transition of low-speed, two-dimensional boundary layers for two (moderate) levels of flow acceleration and various levels of ... -
Simultaneous Variable Solutions of the Incompressible Steady Navier-Stokes Equations in General Curvilinear Coordinate Systems
(The American Society of Mechanical Engineers (ASME), 1992)A simultaneous variable solution technique for the incompressible, steady, two-dimensional Navier-Stokes equations in primitive formulation and general curvilinear orthogonal and nonorthogonal coordinate ... -
The Linear Stability of a Flat Plate Boundary-Layer Approaching a Cylindrical Obstacle
(The American Society of Mechanical Engineers (ASME), 1992)The linear stability of the low-speed three-dimensional flow over a flat plate with an attached cylinder is studied. The region of interest is upstream of the initial separation point and ... -
A Near-Wall Model for Separated Turbulent Flows
(The American Society of Mechanical Engineers (ASME), 1992)A near-wall model for separated turbulent flows is presented and evaluated. The model is based on experimental observations, in particular, the wake-like behavior of turbulence away from walls, ... -
U.S. Technological Competitiveness: A Fluids Engineers’ Viewpoint
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Questions in Fluid Mechanics—II
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Brief Reviews of Some Time-Dependent Flows
(The American Society of Mechanical Engineers (ASME), 1992)Separated flows in general and time-dependent flows in particular provide fertile territory for fundamental research in fluid dynamics and account for much of the subject matter. Thus, it is ... -
Reaction Forces During Two-Phase Discharges
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The Effect of Blade Manipulator in Fully Developed Pipe Flow
(The American Society of Mechanical Engineers (ASME), 1992)Experiments were carried out in applying the concept of passive device called BLADEs (boundary-layer alteration devices) to fully developed pipe flow to assess its feasibility as a drag reduction ... -
Swirling, Particle-Laden Flows Through a Pipe Expansion
(The American Society of Mechanical Engineers (ASME), 1992)The present study concerns a particle-laden, swirling flow through a pipe expansion. A gas-particle flow enters the test section through a center tube, and a swirling air stream enters through ...