Download or read book Influence of Initial Boundary Layer on the Two Dimensional Turbulent Mixing of a Single Stream written by R. C. Bauer and published by . This book was released on 1971 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: An integral method is presented for estimating the influence of an initial boundary layer on the development of a two-dimensional, isobaric, turbulent, free shear layer. The basic equation is derived by applying the principle that, at any streamwise station along the free shear layer, the momentum of the entrained flow equals the total axial turbulent shear force acting along the dividing streamline. This equation is solved using a single parameter family of velocity profiles derived by Korst and Prandtl's mixing length concept for turbulent shear stress. The theory involves one empirical constant which was evaluated using Tollmien's experimental data for incompressible, turbulent mixing. The theory is verified by comparing with experimental data for free-stream Mach numbers up to 6.4. (Author).
Download or read book Two dimensional Turbulent Mixing Between Streams Considering the Effects of Initial Boundary Layer written by Arseny A. Essen and published by . This book was released on 1964 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Growth of the Two Dimensional Mixing Layer from a Turbulent and Non Turbulent Boundary Layer written by F. K. Browand and published by . This book was released on 1978 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of the initial boundary layer upon the downstream growth of the turbulent mixing layer between two streams is studied experimentally. Two streams are studied experimentally. Two conditions are carefully documented--in one case the boundary layers at separation are laminar; in the other case one boundary layer is made turbulent with a trip wire. When the boundary layer is turbulent, the lateral length scale, theta, characterizing the thickness of the mixing region, grows more slowly. At 400-500 initial momentum thicknesses downstream, the growth rate relaxes toward--but does not meet--the growth rate of the untripped mixing layer. The lateral distributions of turbulence quantities, when scaled with the local lateral thickness, achieve the same form at distances beyond approximately 800 momentum thicknesses. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of the Two dimensional Free Turbulent Mixing Between Converging Streams with Initial Boundary Layers written by Shen-ching Lee and published by . This book was released on 1966 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Two dimensional Free Turbulent Mixing Between Incompressible Streams with Initial Boundary Layers written by Larry Walter Anderson and published by . This book was released on 1966 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analysis of Transonic Viscous inviscid Interactions on Axisymmetric Bodies with Solid Strings Or Real Plumes written by Steven F. Yaros and published by . This book was released on 1978 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Mixing in Nonreactive and Reactive Flows written by S. Murthy and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulence, mixing and the mutual interaction of turbulence and chemistry continue to remain perplexing and impregnable in the fron tiers of fluid mechanics. The past ten years have brought enormous advances in computers and computational techniques on the one hand and in measurements and data processing on the other. The impact of such capabilities has led to a revolution both in the understanding of the structure of turbulence as well as in the predictive methods for application in technology. The early ideas on turbulence being an array of complicated phenomena and having some form of reasonably strong coherent struc ture have become well substantiated in recent experimental work. We are still at the very beginning of understanding all of the aspects of such coherence and of the possibilities of incorporating such structure into the analytical models for even those cases where the thin shear layer approximation may be valid. Nevertheless a distinguished body of "eddy chasers" has come into existence. The structure of mixing layers which has been studied for some years in terms of correlations and spectral analysis is also getting better understood. Both probability concepts such as intermittency and conditional sampling as well as the concept of large scale structure and the associated strain seem to indicate possibilities of distinguishing and synthesizing 'engulfment' and molecular mixing.
Download or read book Engineering Model of Unsteady Flow in a Cavity written by R. C. Bauer and published by . This book was released on 1991 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mathematical model was assembled from fundamental fluid dynamic relations and turbulent single-stream mixing zone relations to predict spectra, i.e., the frequency and amplitude, of unsteady pressures acting in a rectangular cavity exposed to an external flow parallel to the cavity opening. Characteristics of the approaching boundary layer are expected as inputs, thereby allowing computation of spectra for cases of mass-injection upstream of the cavity. The equations were compiled as a code (CAP) that can be run in less than 15 sec on a personal computer. Maximum dynamic loads acting on the contents of the cavity can be estimated, in addition to the primary frequencies of oscillation.
Download or read book The Effects of Longitudinal Curvature on Turbulent Two stream Mixing Layers written by Michael Walter Plesniak and published by . This book was released on 1989 with total page 352 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 1968 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Index written by and published by . This book was released on 1971 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flow in the Base Region of Axisymmetric and Two dimensional Configurations written by Milton A. Beheim and published by . This book was released on 1961 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical and experimental investigation has been conducted of the pressure distribution on the surface of either a circular cylinder or a truncated cone located within the base region of another circular cylinder at Mach number 2. A similar analysis of pressure distribution was made for rearward-facing two-dimensional steps, and theoretical results were compared with experimental results of earlier investigations. Theoretical base-pressure ratios of two-dimensional steps agreed well with experimental results; however, as a result of the simplifying assumptions made for axisymmetric configurations, only a range of values for theoretical base-pressure ratio could be calculated within which the experimental results were expected to occur. The data generally followed the trends predicted by the theory, and deviations apparently could be explained.
Download or read book NASA Technical Report written by and published by . This book was released on 1959 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Study of Soft Landings on Gas filled Bags written by Jack B. Esgar and published by . This book was released on 1960 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Japanese Science and Technology written by and published by . This book was released on 1986 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Collection of Technical Papers written by and published by . This book was released on 1972 with total page 1274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
