Journal of Fluids Engineering: Recent submissions
Now showing items 6341-6360 of 9024
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Hydraulic Forces Acting on a Circular Cylinder With Surface Source of Minute Air Bubbles and Its Cavitation Characteristics
(The American Society of Mechanical Engineers (ASME), 1993)Experiments are performed by using two circular cylinders made of porous filter material, that is, bronze sintered compact, with a different filter size, respectively, in a water tunnel. The ... -
Partial Cavities: Global Behavior and Mean Pressure Distribution
(The American Society of Mechanical Engineers (ASME), 1993)The results of an experimental work concerning the behavior of flows with partial cavities are presented. The tests were carried out using a plano-convex foil placed in the free surface channel ... -
Vortex Shedding and Lock-On in a Perturbed Flow
(The American Society of Mechanical Engineers (ASME), 1993)Vortex shedding resonance or lock-on is observed when a bluff body is placed in an incident mean flow with a superimposed periodic component. Direct numerical simulations of this flow at a ... -
Partial Cavities: Pressure Pulse Distribution Around Cavity Closure
(The American Society of Mechanical Engineers (ASME), 1993)Pressure pulse height spectra (PPHS) are measured in the case of partial cavitation attached to the leading edge of a hydrofoil. It is shown that the distributions of pressure pulses around ... -
Film-Thickness, Pressure-Gradient, and Turbulent Velocity Profiles in Annular Dispersed Flows
(The American Society of Mechanical Engineers (ASME), 1993)A regional model has been described for dispersed turbulent two-phase flow which accounts for the transverse variation of velocity. The two-phase turbulence parameters are introduced in direct ... -
Probabilistic Simulation of Fragment Dynamics and Their Surface Impacts in the SSME Turbopump
(The American Society of Mechanical Engineers (ASME), 1993)Numerical simulations are used to model the dynamics of solid fragments in the high pressure fuel turbopump of the space shuttle main engine (SSME HPFTP). The simulations are conducted in a ... -
The Torsion Effect on Fully Developed Laminar Flow in Helical Square Ducts
(The American Society of Mechanical Engineers (ASME), 1993)The continuity equation and Navier-Stokes equations derived from a non-orthogonal helical coordinate system are solved by the Galerkin finite-element method in an attempt to study the torsion ... -
The Flow Structure and Statistics of a Passive Mixing Tab
(The American Society of Mechanical Engineers (ASME), 1993)Water channel flow visualization and anemometry studies were conducted to examine the flow structure and velocity statistics in the wake of a passive mixing tab designed for enhancement of ... -
Flow Measurements in a Model Burner—Part 2
(The American Society of Mechanical Engineers (ASME), 1993)The isothermal swirling flow in the vicinity of a model oxy-fuel industrial burner is analyzed with laser-Doppler velocimetry together with laser-sheet visualization. The burner consists of a ... -
Frictional Drag Reduction by Injecting High-Viscosity Fluid Into Turbulent Boundary Layer
(The American Society of Mechanical Engineers (ASME), 1993)This paper presents a new method to reduce turbulent frictional drag by injecting high-viscosity fluid into the boundary layer. When the turbulent region of the boundary layer is filled with ... -
The Combined Drag Effects of Riblets and Polymers in Pipe Flow
(The American Society of Mechanical Engineers (ASME), 1993)The additional skin friction effect produced by a 3M riblet surface, used in conjunction with low concentration polymer solutions, is investigated in fully developed, turbulent pipe flow. Generally ... -
Mean Streamwise Velocity Measurements in a Triple Jet of Equilateral Triangular Configuration
(The American Society of Mechanical Engineers (ASME), 1993) -
Research Needs in Fluids Engineering: Basic Research Needs in Fluid-Solid Multiphase Flows
(The American Society of Mechanical Engineers (ASME), 1993) -
Drag Characteristics of Extra-Thin-Fin-Riblets in an Air Flow Conduit
(The American Society of Mechanical Engineers (ASME), 1993)An experimental study of riblets with extra thin fins (5 μm thick) is presented. A drag reduction of 2–3 percent per quarter conduit wall is indicated when h+ is around 3–15 in a square ... -
“Heavy” Particle Dispersion Measurements With Mono- and Polydisperse Particle Size Distributions
(The American Society of Mechanical Engineers (ASME), 1993)A method is presented to estimate the effects of a polydisperse particle size distribution on the measured turbulent dispersion of particles. In addition, the analysis provides a means to ... -
Pressure Measurements Around a Rotating Cylinder With and Without Crossflow
(The American Society of Mechanical Engineers (ASME), 1993)Static pressure measurements around a cylinder rotating about an orthogonal axis with and without superimposed crossflow are carried out by using a capacitance type differential pressure transducer ... -
Questions in Fluid Mechanics—Flow-Driven Particle Impact Erosion: Asking the Right Questions
(The American Society of Mechanical Engineers (ASME), 1993) -
Streamwise Computation of Three-Dimensional Flows Using Two Stream Functions
(The American Society of Mechanical Engineers (ASME), 1993)An approach to compute three-dimensional flows using two stream functions is presented. The independent variables used are χ, a spatial coordinate, and ξ and η, values of stream functions along ... -
U.S. Competitiveness: A Fluid Engineer’s Viewpoint—Column 4—What Government Studies Indicate and Some Suggestions
(The American Society of Mechanical Engineers (ASME), 1993) -
Analytic Expression for the Universal Logarithmic Velocity Law
(The American Society of Mechanical Engineers (ASME), 1993)