Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
An Experimental Investigation Of The Turbulent Mixing On Non Homogeneous Coaxial Jets
Download An Experimental Investigation Of The Turbulent Mixing On Non Homogeneous Coaxial Jets full books in PDF, epub, and Kindle. Read online An Experimental Investigation Of The Turbulent Mixing On Non Homogeneous Coaxial Jets ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis An Experimental Investigation of the Turbulent Mixing on Non-homogeneous Coaxial Jets by : Louis J. Alpinieri
Download or read book An Experimental Investigation of the Turbulent Mixing on Non-homogeneous Coaxial Jets written by Louis J. Alpinieri and published by . This book was released on 1963 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results on the turbulent mixing process between carbon dioxide and hydrogen central jets exhausting into a moving concentric stream of air are presented. The diffusion of mass and momentum only are considered, since both streams are at approximately equal temperature. The flow velocities are in the low to high subsonic range. Principal points of investigation are the condition of equal velocity between jets and the condition of equal mass flow per unit area between jets. Radial and axial distributions of concentration and velocity are presented. On the basis of the measurements it is concluded that no tendency towards segregation of the stream exists when either the velocities or the mass flows of the streams are equal. Furthermore, it is demonstrated that the product of local density and eddy kinematic viscosity coefficient can be assumed to be solely dependent upon the axial coordinate. In agreement with previous results it is found that mass diffuses more readily than momentum. Finally, a formulation of the eddy viscosity and eddy diffusivity coefficients that adequately describe the results obtained is derived. (Author).
Book Synopsis An Experimental Investigation of the Mixing of Compressible-air Jets in a Coaxial Configuration by : James M. Eggers
Download or read book An Experimental Investigation of the Mixing of Compressible-air Jets in a Coaxial Configuration written by James M. Eggers and published by . This book was released on 1969 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent mixing of compressible air in supersonic and subsonic coaxial jet flows.
Book Synopsis Turbulent Mixing of Coaxial Compressible Hydrogen-air Jets by : James M. Eggers
Download or read book Turbulent Mixing of Coaxial Compressible Hydrogen-air Jets written by James M. Eggers and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Free Turbulent Mixing by : Philip Thomas Harsha
Download or read book Free Turbulent Mixing written by Philip Thomas Harsha and published by . This book was released on 1971 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Theoretical and Experimental Investigation of Axisymmetric, Non-homogeneous, Compressible Turbulent Mixing by : Robert Frank Hurt
Download or read book A Theoretical and Experimental Investigation of Axisymmetric, Non-homogeneous, Compressible Turbulent Mixing written by Robert Frank Hurt and published by . This book was released on 1970 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1971 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Turbulence in the Mixing Region Between Coaxial Streams by : Thomas S. Zawacki
Download or read book Experimental Investigation of Turbulence in the Mixing Region Between Coaxial Streams written by Thomas S. Zawacki and published by . This book was released on 1968 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of Turbulent Mixing in Nonburning and Burning Hydrogen-air Coaxial Jets by : Dan Yee
Download or read book An Experimental Study of Turbulent Mixing in Nonburning and Burning Hydrogen-air Coaxial Jets written by Dan Yee and published by . This book was released on 1982 with total page 610 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.
Download or read book Summary Report written by D. E. Chriss and published by . This book was released on 1972 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent coaxial air-air mixing and hydrogen-air mixing were studied. The ratio of outer stream to jet veolcity was varied from 0.12 to 1.52 for the air-air mixing systems and from 0.16 to 0.42 for the hydrogen-air systems. Special emphasis was placed on the determination of the turbulent transport properties (especially the eddy viscosity and the Prandtl number) from the mean flow field measurements by use of an integral technique. Radial and axial profiles of velocity, concentration, shear stress, and eddy viscosity are presented, as well as radial profiles of the turbulent Prandtl number and representative static pressure profiles. In addition to the graphical presentation of the data, the mean flow field properties are presented in tabular form. The major conclusions of this investigation are: (1) the experimental technique used produced good quality meanflow field data; (2) the integral technique used for calculating the turbulent transport properties from the mean flow field data gave satisfactory results; (3) for the air-air system, a significant radial variation of the second regime eddy viscosity was observed for most of the tests; (4) the eddy viscosity decreases with increasing radius for the hydrogen-air systems; and (5) approximate average values for the turbulent Prandtl number are: 0.60 for the air-air tests and 0.80 to 0.85 for the hydrogen-air system.
Book Synopsis Effect of Injectant Molecular Weight on Mixing of a Normal Jet in a Mach 4 Airstream by : Marvin G. Torrence
Download or read book Effect of Injectant Molecular Weight on Mixing of a Normal Jet in a Mach 4 Airstream written by Marvin G. Torrence and published by . This book was released on 1971 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1971 with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Mixing in the Initial Region of Heterogeneous Axisymmetric Coaxial Confined Jets by : Kirti N. Ghia
Download or read book Turbulent Mixing in the Initial Region of Heterogeneous Axisymmetric Coaxial Confined Jets written by Kirti N. Ghia and published by . This book was released on 1970 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research Reports by :
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1964 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multi-scalar Mixing in Turbulent Coaxial Jets by : Alais Hewes
Download or read book Multi-scalar Mixing in Turbulent Coaxial Jets written by Alais Hewes and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "An experimental investigation of multi-scalar mixing in turbulent coaxial jets is presented herein. The first part of this work involves the development of a thermal-anemometry-based probe to simultaneously measure two scalars and velocity in turbulent flows. The work of Hewes (2016) on the simultaneous measurement of velocity and helium concentration is extended, and the necessary and optimal design parameters for thermal-anemometry-based probes capable of making such measurements are refined in the current work. An analysis of measurements from different interference probes reveals that, unlike what has previously been reported in the literature, hot-wires of differing diameters are not required for concurrent velocity and concentration measurements. Furthermore, both theoretical arguments and experiments in flows of varying helium concentration are used to demonstrate that the cold-wire thermometer is effectively insensitive to helium concentration. The temperature field can therefore be measured independently of the velocity or concentration fields. This has important implications for interference probes, since the cold-wire can be used to compensate for temperature effects on these probes, allowing them to be used in non-isothermal flows. Consequently, it is shown that an interference probe can be combined with a cold-wire thermometer to form a novel 3-wire probe to simultaneously measure velocity, helium concentration, and temperature in a turbulent flow. \\ \indentIn the second part of this work, the novel 3-wire probe is used to study the evolution of multiple scalars in turbulent coaxial jets consisting of (i) a center jet containing a mixture of helium and air, (ii) an annular jet containing pure (unheated) air, and (iii) a coflow of (pure) heated air. The flow can be viewed as containing three scalars: $\phi_1$, normalized helium concentration, $\phi_2$, pure, unheated air in the annular jet (which is inferred from measurements of the other two scalars), and $\phi_3$, normalized temperature. Measurements are performed along axis of the jets for three different momentum ratios ($M_2/M_1=0.77$, $M_2/M_1=2.1$, and $M_2/M_1=4.2$). Mean and rms quantities, covariances, velocity-scalar triple moments, probability density functions (PDFs), joint probability density functions (JPDFs), and conditional expectations of the fluctuating velocity are measured. Three distinct regions are identified along the axis of the coaxial jets: (i) the potential core of the center jet, consisting primarily of $\phi_1$, (ii) the inner mixing region, dominated by large fluctuations of anti-correlated $\phi_1$ and $\phi_2$, and (iii) the fully merged region, where the coaxial jets behave similarly to a single jet. In this final region, one can observe that $\phi_1$ and $\phi_3$, and $\phi_2$ and $\phi_3$, become progressively anti-correlated in the downstream direction, whereas $\phi_1$ and $\phi_2$ become progressively more correlated. Increasing the momentum ratio ($M$) initially causes $\phi_1$ and $\phi_2$ to mix more quickly, however, examination of the JPDFs suggest that far downstream, these effects may be reversed. Furthermore, distinct differences are observed between coaxial jets in which $M1$ and those in which $M1$, most likely resulting from the fact that the annular jet is entrained into center jet in the former, whereas the center jet is entrained into annular jet in the latter. Finally, it is worth pointing out that $M$ may have a significant effect on the shapes and distributions of the scalar-scalar JPDFs, even where the correlation coefficients of different cases have converged to similar values. Thus, the need for simultaneous multi-scalar measurements when studying multi-scalar mixing is emphasized"--
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1973 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: