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An Experimental Study Of The Effect Of Transverse Pulsation On The Turbulence Of Fully Developed Pipe Flow
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Book Synopsis An Experimental Study of the Effect of Transverse Pulsation on the Turbulence of Fully-developed Pipe Flow by : Ronald Wilson Greene
Download or read book An Experimental Study of the Effect of Transverse Pulsation on the Turbulence of Fully-developed Pipe Flow written by Ronald Wilson Greene and published by . This book was released on 1965 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of the Effect of Small Particles on the Fluid Turbulence in Fully Developed Flow of Air in a Horizontal Pipe by : Lucia M. Liljegren
Download or read book An Experimental Study of the Effect of Small Particles on the Fluid Turbulence in Fully Developed Flow of Air in a Horizontal Pipe written by Lucia M. Liljegren and published by . This book was released on 1990 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the mean and fluctuating velocities of both the solid and gas phases in a dilute suspension flowing through a 5 in diameter horizontal pipe are presented. Velocity measurements for both phases were obtained using Laser Doppler Velocimetry; signal discrimination was accomplished through application of the Phase/Doppler principle. Measurements were performed in air containing spherical glass beads with a volume-mean diameter of approximately 45 $mu$m and flowing with a mean centerline velocity between 17 and 24 m/s. The glass particles were able to respond to the most energetic turbulent disturbances in the fluid. Fluid turbulence levels were found to be affected at very low particle mass ratios and to increase monotonically with loading. Specifically, the fluid turbulence level was found to be enhanced by approximately 20% at particle mass ratios as low as 1%. At these low levels of loading, the most dramatic increase in the fluid turbulence intensity occurred near the pipe wall. The centerline turbulence intensity for a suspension with a particle mass ratio of 30% was found to be approximately twice that measured in single-phase flows. The measured particle velocity intensities in pipe flow were found to exceed the levels predicted on the basis of theoretical analyses and experimental measurements of the particle velocity characteristics in grid turbulence. An analysis of the motion of a small particle suspended in a gas flowing with a constant mean velocity gradient predicts that the particle streamwise velocity fluctuations are enhanced by the presence of mean fluid velocity gradients; these enhanced particle velocity fluctuations are expected to lead to creation of additional turbulent kinetic energy. Both the enhanced particle velocities and the enhanced fluid turbulence levels measured near the wall at low particle mass ratios are explained in terms of the existence of mean fluid velocity gradients which exist in this region.
Book Synopsis The Effect of Pressure Pulsations and Vibrations on Fully Developed Pipe Flow by : Donald O. Barnett
Download or read book The Effect of Pressure Pulsations and Vibrations on Fully Developed Pipe Flow written by Donald O. Barnett and published by . This book was released on 1981 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis is presented of the effect of longitudinal pressure pulsations or vibrations on the velocity distribution in laminar or turbulent fully developed pipe flow. Specifically, the Reynolds equations are formulated in a noninertial reference frame so that the influence of pressure pulsations, vibrations, or a combined pressure and vibrational oscillation can be obtained from a single solution. For axisymmetric developed flow of a constant property (incompressible) fluid, the radial and circumferential momentum equations can be solved and the axial momentum equation is linearized so that the velocity field can be obtained as the sum of a steady and a time-dependent component. By obtaining a solution for the case where the pressure (or amplitude of vibration) varies sinusoidally, one obtains the solution for disturbances of arbitrary waveform through a Fourier series expansion of the disturbance. Results are presented that show that the velocity field is dependent upon the mean flow Reynolds number, a vibrational Reynolds number, and the amplitude of the forcing function. In general, the fluid response to differing waveforms is similar to that obtained for simple harmonic oscillations with respect to the various parameters explored.
Book Synopsis Master's Theses and Doctoral Dissertations in the Pure and Applied Sciences by :
Download or read book Master's Theses and Doctoral Dissertations in the Pure and Applied Sciences written by and published by . This book was released on 1968 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States by :
Download or read book Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States written by and published by . This book was released on 1968 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report by : United States. National Bureau of Standards
Download or read book Report written by United States. National Bureau of Standards and published by . This book was released on 1963 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Library Publication by : Mitchell Memorial Library
Download or read book Library Publication written by Mitchell Memorial Library and published by . This book was released on 1965 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Progress written by and published by . This book was released on 1973 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis An Experimental Study of the Fluid Mechanics of Turbulent Pipe Flow when Subjected to Forced Oscillation at High Frequencies by : Jiann-Lih Hwang
Download or read book An Experimental Study of the Fluid Mechanics of Turbulent Pipe Flow when Subjected to Forced Oscillation at High Frequencies written by Jiann-Lih Hwang and published by . This book was released on 1992 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Research in the United States by :
Download or read book Hydraulic Research in the United States written by and published by . This book was released on 1964 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Pressure Pulsations and Vibrations on Fully Developed Pipe Flow by : Donald O. Barnett
Download or read book The Effect of Pressure Pulsations and Vibrations on Fully Developed Pipe Flow written by Donald O. Barnett and published by . This book was released on 1981 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis is presented of the effect of longitudinal pressure pulsations or vibrations on the velocity distribution in laminar or turbulent fully developed pipe flow. Specifically, the Reynolds equations are formulated in a noninertial reference frame so that the influence of pressure pulsations, vibrations, or a combined pressure and vibrational oscillation can be obtained from a single solution. For axisymmetric developed flow of a constant property (incompressible) fluid, the radial and circumferential momentum equations can be solved and the axial momentum equation is linearized so that the velocity field can be obtained as the sum of a steady and a time-dependent component. By obtaining a solution for the case where the pressure (or amplitude of vibration) varies sinusoidally, one obtains the solution for disturbances of arbitrary waveform through a Fourier series expansion of the disturbance. Results are presented that show that the velocity field is dependent upon the mean flow Reynolds number, a vibrational Reynolds number, and the amplitude of the forcing function. In general, the fluid response to differing waveforms is similar to that obtained for simple harmonic oscillations with respect to the various parameters explored.
Download or read book NBS Special Publication written by and published by . This book was released on 1964 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1981 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Research in the United States by : United States. National Bureau of Standards
Download or read book Hydraulic Research in the United States written by United States. National Bureau of Standards and published by . This book was released on 1963 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis AIChE Publications by : Nichigai Asoshiētsu
Download or read book AIChE Publications written by Nichigai Asoshiētsu and published by . This book was released on 1973 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
