2 edition of three-dimensional evolution of a plane mixing layer. found in the catalog.
three-dimensional evolution of a plane mixing layer.
Robert D. Moser
by National Aeronautics and Space Administration, Ames Research Center, National Technical Information Center, distributor in Moffett Field, Calif, [Springfield, Va
Written in English
|Other titles||Three dimensional evolution of a plane mixing layer.|
|Statement||Robert D. Moser and Michael M. Rogers.|
|Series||NASA technical memorandum -- 103926.|
|Contributions||Rogers, Michael M., Ames Research Center.|
|The Physical Object|
A turbulent three-dimensional wall jet with an exit Reynolds number of , was investigated using stereoscopic particle image velocimetry (PIV) in the near-field region (x/D = 5). The proper orthogonal decomposition (POD) was applied to all three components of the velocity field to investigate the underlying coherent structures in the by: 9. The Effect of Streamwise Braid Vortices on the Particle Dispersion in a Plane Mixing Layer. Part 1: Equilibrium Points and Their Stability, with B. Marcu, Phys. Fluids 8, p. (). PDF. Unsteady Models for the Nonlinear Evolution of the Mixing Layer, with P.K. Newton, N. Raju, and G. R. Ruetsch, Phys. Rev. E 52, p. (). PDF.
Abstract Point measurements of the mean and fluctuating velocity components were made in the mixing layer region of a round air jet issuing from a mm diameter nozzle for the range of jet Reynolds numbers from to , Fully-coupled analysis of jet mixing problems: Three-dimensional PNS model, SCIP3D (NASA contractor report) [Wolf, D. E] on *FREE* shipping on qualifying offers. Fully-coupled analysis of jet mixing problems: Three-dimensional PNS model, SCIP3D (NASA contractor report)Author: D. E Wolf.
The Symposium on structure of Complex turbulent shear flows was proposed by the "Comite National Fran The Disturbances Affect Brown-Roshko Structures in Plane Mixing Layer. Pages Three-Dimensional Wake of a Swept Wing. Pages the implied or actual line or edge placed on a two-dimensional surface to represent the place in nature where the sky meets the horizontal land or water plane Eye level the presumed height of the artist's eyes, parallel to the ground plane and extending to the horizon.
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The Three-Dimensional Evolution of a Plane Mixing Layer Part 1. The Kelvin-Helmholtz Roll-Up Michael M. Rogers and Robert D. Moser (NASA-TM-I) THE THREE-DIMENSIONAL EVOLUTION OF A PLANE MIXING LAYER. PART i: THE KELVIN-HFLMHOLTZ RGLL-UP (NASA) 87 p CSCL G3/;4 NI Uncl as O September NASA National.
Get this from a library. The three-dimensional evolution of a plane mixing layer. Part 1, The Kelvin-Helmholtz roll-up. [Michael M Rogers; Robert D Moser; Ames Research Center.]. The three-dimensional evolution of a plane mixing layer: the Kelvin–Helmholtz rollup - Volume - Michael M.
Rogers, Robert D. MoserCited by: The evolution of three-dimensional temporally evolving plane mixing layers through as many as three pairings has been simulated numerically. Initial conditions for all simulations consisted of a few low-wavenumber disturbances, usually derived from linear stability theory, in.
Add tags for "The three-dimensional evolution of a plane mixing layer. Part 2, Pairing and transition to turbulence". Part 2, Pairing and transition to turbulence". Be the first. Summary. We investigate the two- and three-dimensional evolution of an oblique wavy perturbation to a plane vorticity field.
We first discuss the case of a plane mixing layer, which, if perturbed by an oblique wave only, forms an oblique Kelvin-Helmholtz roller with swirl that contains streamwise vorticity of the opposite sign from the connecting braid vorticity by: 2. In this paper, several mathematical models for the large scale structures in some special kinds of mixing layers, which might be practically useful for enhancing the mixing, are proposed.
First, the linear growth rate of the large scale structures in the mixing layers was calculated. Then, using the much improved weakly non-linear theory, combined with the Cited by: 1. A comparative study of inflow conditions for two‐ and three‐dimensional spatially developing mixing layers using large eddy simulation Stephan Hug and William A.
McMullan Resolved Scalar Mixing in Large Eddy Simulations of a High Reynolds Number Plane Mixing Layer, Spanwise domain effects on the evolution of the plane turbulent. Fig. 13 juxtaposes the plane and a three-dimensional case, where in the latter (b) for equal velocities the flow parameter λ v is larger and consequently the spread must also be larger.
Download: Download full-size image; Fig. Diffusive and convective components in a plane (a) and a three-dimensional mixing layers (b).Cited by: 9. A three–dimensional temporally evolving mixing layer and particle dispersion patterns with different Stokes numbers were investigated.
The coherent. The alternative large structure in a mixing layer, found by several workers, is intense, but fully three-dimensional and thus less orderly than the Brown-Roshko structure.
View Show abstract. Direct numerical simulation of a spatially developing supersonic mixing layer with a convective Mach number of is conducted. The present work focuses on the structural evolution and the turbulent statistics, and both instantaneous and time-averaged data are utilized to obtain further insight into the dynamical behaviors of the by: 4.
plane mixing layers By L. BERNALf AND A. ROSHKO Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CAUSA (Received 9 September and in revised form 13 March ) The development of three-dimensional motions in a plane mixing layer was investi- gated experimentally.
Three-Dimensional Features of Particle Dispersion in a Nominally Plane Mixing Layer, with B. Marcu, Phys. Fluids 8, p. Marcu_and_Meiburg_b Numerical Simulation of Local Disturbances in Absolutely/Convectively Unstable Flow by a Vortex Method, with J.
Ehrhard, J Delfs, and H. Oertel jr., Zeitschrift fuer Angewandte Mathematik. Three‐Dimensional Patterns of Downstream Velocity and Lateral Momentum Flux  The examination of depth‐averaged theoretical relations provides a starting point for understanding the contributions of lateral momentum flux to the spatial evolution of flow within a confluence mixing interface.
However, further insight into this spatial Cited by: The effect of Mach number on the evolution of instabilities in the compressible mixing layer is investigated. The full time-dependent compressible Navier–Stokes equations are solved numerically for a temporally evolving mixing layer using a mixed spectral and high-order finite difference method.
The convective Mach number Mc (the ratio of the velocity difference to the Cited by: When computing complex three-dimensional flow, this often requires an excessive amount of computer resources. An alternative is to assume that the flow near the wall behaves like a fully developed turbulent boundary layer and prescribe boundary conditions employing wall functions.
Dynamics of a Three-Dimensional, Compressible, Mixing Layer with Strong Streamwise Vorticity by Jonathan Kindred Elliott B.A.I. Mechanical Engineering, B.A. Mathematics, Trinity College, Dublin () SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Master of Science Aeronautics and Astronautics at the.
6 Unit three-dimensional fig Ures and graphs RECONNECT TO THE BIG IDEA 5 in. 3 in. 12 in. 4 cm 3 cm 5 cm Surface Area and Volume The surface area of a figure is the amount of space that covers the figure.
To find the surface area of a solid, find the sum of the areas of its outerFile Size: 1MB. The behavior of air bubble clusters rising in water and the induced flow field are numerically studied using a three-dimensional two-way coupling algorithm based on a vortex-in-ceCited by: 7.
Click here for DISCLAIMER Document starts on next page TITLE: Technical Guidance Manual for Performing Wasteload Allocations, Book III: Estuaries- Part 3: Use of Mixing Zone Models in Estuarine Waste Load Allocations EPA DOCUMENT NUMBER: EPAR DATE: August POINT OF CONTACT: TBD ABSTRACT As part of ongoing efforts to .Cambridge Core - Mathematical Physics - The Turbulent Ocean - by S.
A. Thorpe.The evolution of the 2- and 3-D structures in a temporally growing plane shear layer is numerically simulated with the discrete vortex dynamics method. Two signs of vorticity are included and account for the effect of the weaker boundary layer leaving the splitter plate which is used to create a spatially developing mixing layer.