3 edition of Numerical study of compressible boundary-layer transition between two concentric cylinders found in the catalog.
Numerical study of compressible boundary-layer transition between two concentric cylinders
by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va
Written in English
|Statement||submitted by Chuen-Yen Chow; principal investigator.|
|Series||NASA contractor report -- NASA CR-194622., NASA contractor report -- NASA CR-194622.|
|Contributions||United States. National Aeronautics and Space Administration.|
|The Physical Object|
Ninth International Conference on Numerical Methods in Fluid Dynamics A numerical study of the two- and three-dimensional unsteady Navier-Stokes equations in velocity-vorticity variables using compact difference schemes. Numerical simulation of boundary-layer transition. A grid-free numerical method is used to simulate incompressible flow at high Reynolds numbers. The numerical method simulates the flow inside the boundary layer by vortex sheets and the flow outside this layer by vortex blobs. The algorithm produces a smooth transition between the sheets and the accuracy of this hybrid numerical method is tested in several numerical by:
Linear stability of the three-dimensional compressible attachment-line boundary-layer flow on a 60°-sweep infinite- span cylinder in a Mach free-stream is investigated by the two-dimensional (2D) eigenvalue approach. Results of this study indicate that the Cited by: A turbulent boundary layer is very unsteady and the streamlines do not remain parallel. The boundary layer shape represents an average of the velocity at any height. There is a region between the laminar and turbulent section where transition takes place The turbulent boundary layer exists on top of a thin laminar layer called the LAMINAR SUB File Size: KB.
Numerical study of hydrodynamic laminar behavior of a viscous fluid in bioreactor with multiple mixers is provided in the present paper. The reactor is equipped with two disk impellers. The fluid motion is studied in stream function-vorticity formulation. the axisymmetric compressible boundary layer flow along a thin moving cylinder can be matched to its two-dimensional counterpart. This limiting case is characterized by the com- pressible boundary layer flow on a moving semi-infinite flat by: 3.
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Numerical Study of Compressible Boundary-Layer Transition between Two Concentric Cylinders NASA Lewis Research Center Cooperative Agreement No. NCC Final Report for the Period Ap - Octo (f_ASA-CR-I) NUMFRICAL STUDY OF CGMPRESSIULE bOUNDARY-LEVEL [email protected] _ETwE_N TWO CONCENTRIC CYLINgERS Fin_l Report, 15 Apr.
Get this from a library. Numerical study of compressible boundary-layer transition between two concentric cylinders: final report for the period Ap - Octo [Chuen-Yen Chow; United States.
National Aeronautics and Space Administration.]. The generation of a turbulent inﬂow for the numerical simulation of a boundary layer is in itself an issue, owing to the difﬁculty of obtaining a physical turbulent ﬂow at a rea-sonable computational cost. Different approaches, including temporal boundary layer TDNS, extended TDNS, and spa-tial boundary layer, have been developed.
Compressible turbulent boundary layers with free-stream Mach number ranging from up to 20 are analyzed by means of direct numerical simulation of the Navier–Stokes equations. The fluid is assumed to be an ideal gas with constant specific heats.
The simulation generates its inflow condition using the rescaling-recycling by: The nonlinear temporal evolution of disturbances in compressible flow between infinitely long, concentric cylinders is investigated through direct numerical simulations of the full, three‐dimensional Navier–Stokes and energy equations.
Counter‐rotating cylinders separated by wide gaps are considered with supersonic velocities of the inner by: 1. Numerical Simulation of Buoyancy-Induced Turbulent Flow Between Two Concentric Isothermal Spheres. Heat Transfer Engineering, Vol. 31, No. 1 Boundary-Layer Transition Under the Effect of Compressibility for the Correlation Based Transition Model A numerical study of the similarity of fully developed turbulent flows in orthogonally Cited by: It has long been known that incompressible boundary-layer theory is inadequate to deal with many viscous flow and heat-transfer problems involving high-speed aircraft.
Accordingly, the compressible boundary layer has been the object of intensive study, beginning with Size: 2MB. Approximate analytical Solution of Compressible Boundary Layer ﬂow with an adverse Pressure Gradient by Homotopy Analysis Method Nargund L. Achala1 and S.B.
Sathyanarayana2 Abstract The aim of this work is to obtain approximate analytical solution to the two dimensional laminar compressible boundary layer ﬂow with.
Boundary layer equations in compressible cross-flow to a cylinder REFERENCES arated turbulent boundary layers. Journal of Fluid Ertqin- Schlichting, H., Boundary-Layer Theory. McGraw-Hill Company, Patankar, S. and Spalding, D. B., A finite-difference procedure for solving the equations of the two-dimen- sional boundary by: 4.
Numerical Solution of the Compressible Laminar Boundary Layer Equations In this post I go over the numerical solution to the compressible boundary layer equations. This is very useful when a quick estimate of shear stress, wall heat flux, or boundary layer height if necessary.
Boundary Layer in Compressible Fluids. Laminar, transition, and turbulent boundary- layer characteristic with favorable pressure gradient M sub 1 equals Journal of Aircraft, Vol. 8, No. 3 Numerical solutions for radiating hypervelocity boundary-layer flow on a flat by: Incompressible Boundary Layer Control for Flow Past Circular Cylinder: Numerical Study by Suday Kumar Ghosh (Author) ISBN ISBN Why is ISBN important.
ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. Author: Suday Kumar Ghosh. We numerically study the wide-gap spherical Couette flow between two concentric spheres with the inner sphere rotating and the outer one stationary.
Spatial direct numerical simulation of compressible boundary layer ﬂow Thesis Universiteit Twente, Enschede. - With ref. - With summary in English, Dutch and Indonesian.
ISBN The work described in this paper is part of the research program of the J.M. Burgers Centre. Data-driven construction of a reduced-order model for supersonic boundary layer transition.
tool for the mechanistic study of compressible turbulence. In a two-dimensional cylinder wake. spite the pioneering theoretical study by Jeﬀery1 as early as In this paper, we dis-cuss a numerical investigation of the steady laminar viscous ﬂow past two inﬁnite rotating cylinders in a side-by-side conﬁguration.
The solution of the compressible two-dimensional. The Turbulent Boundary Layer in Compressible Flow W. CoP~, M.A., E., of the Engineering Division, N.P.L.
Reports and Memoranda No. 28¢o* November, SummaryThe flow of a compressible gas past a fiat plate is investigated for a turbulent boundary layer. TheFile Size: KB. We study the well-posedness of the boundary layer problems for compressible Navier–Stokes equations.
Under the non-negative assumption on the laminar flow, we investigate the local spatial existence of solution for the steady by: 6. SEVEN NUMERICAL METHODS FOR BOUNDARY-LAYER TYPE EQUATIONS INTRODUCTION It was pointed out in Chapter 5 that the equations that result from the boundary-layer (or thin-shear-layer) approximation provide a useful mathemat- ical model for several.
SOLUTION OF THE GENERAL EQUATIONS FOR COMPRESSIBLE LAMINAR FLOW, INCLUDING TRANSVERSE CURVATURE By DARWIN W. CLUTTER and A. SMITH Report No. LB 15 February Also a study of the effect of trans- Method with that Measured on a Circular Cylinder Boundary Layer in an Axisymmetric Convergent-Divergent 75 File Size: 3MB.
This chapter presents the exact solution of the stability equations for laminar boundary layers in compressible flow. The extension of the Tollmien–Schlichting theory of the amplification and damping of laminar boundary layer disturbances has been extended to compressible flow by a number of writers Approximate solutions to the resulting equations have been published, utilizing as a rule the Cited by: 8.
The steady laminar boundary layer flow on a thin and isothermal moving cylinder in a viscous compressible fluid at rest is studied in this paper. The fluid considered is a model fluid in which ϱ∼T −1 and μ∼T ω. The transformed non-similar boundary layer equations are solved numerically using a very efficient numerical method for some values of ω and wall enthalpyg ω by: 3.A linear analysis for the instability of viscous flow between two porous concentric circular cylinders driven by a constant azimuthal pressure gradient is presented when a radial flow through the permeable walls of the cylinders is present.
In addition, a constant heat flux at the inner cylinder is by: 6.