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3 edition of Direct coupling methods for time-accurate solution of incompressible Navier-Stokes equations found in the catalog.

Direct coupling methods for time-accurate solution of incompressible Navier-Stokes equations

Woo Y. Soh

Direct coupling methods for time-accurate solution of incompressible Navier-Stokes equations

by Woo Y. Soh

  • 155 Want to read
  • 3 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC], [Springfield, Va.? .
Written in English

    Subjects:
  • Navier-Stokes equations.,
  • Poisson"s equation.

  • Edition Notes

    StatementWoo Y. Soh.
    SeriesNASA contractor report -- 189177., NASA contractor report -- NASA CR-189177.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL16953737M

    Space-time correlation is a staple method for investigating the dynamic coupling of spatial and temporal scales of motion in turbulent flows. In this article, we review the space-time correlation models in both the Eulerian and Lagrangian frames of reference, which include the random sweeping and local straining models for isotropic and homogeneous turbulence, Taylor's Cited by: Symplectic geometry and numerical methods in fluid dynamics --On some problems of dynamic meteorology --Some recent developments in spectral methods --A perspective of computational fluid dynamics --Simulation of compressible inviscid flows: The italian contribution --Method of lines approach to the numerical solution of fluid dynamic equations.

    A Preconditioned Navier-Stokes Method for Two-Phase Flows with Application to Cavitation Prediction Robert F. Kunz*, David A. Boger, David R. Stinebring*, Thomas S. Chyczewski, Howard J. Gibeling Applied Research Laboratory The Pennsylvania State University, University Park, PA Sankaran Venkateswaran*, T.R. Govindan* NASA Ames Research CenterCited by: @article{osti_, title = {Newton-Krylov-Schwarz methods for aerodynamics problems: compressible and incompressible flows on unstructured grids.}, author = {Kaushik, D K and Keyes, D E and Smith, B F}, abstractNote = {We review and extend to the compressible regime an earlier parallelization of an implicit incompressible unstructured Euler code [9], and solve .

    Direct numerical simulation of 3-D jets using compact schemes and spatial filtering. Parallel computation of incompressible Navier-Stokes equations using Godunov projection methods on overlapping grids. H. Pan and; Time accurate simulation of viscous flow around deforming bodies using overset grids. equations boundary grid fluid numerical computational flows navier viscous momentum computational fluid mechanics implicit inviscid variables flux turbulent numerical methods boundary conditions solving stability aiaa paper mesh


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Direct coupling methods for time-accurate solution of incompressible Navier-Stokes equations by Woo Y. Soh Download PDF EPUB FB2

DIRECT COUPLING METHOD FOR TIME-ACCURATE SOLUTION OF INCOMPRESSIBLE NAVIER-STOKES EQUATIONS W.Y. Soh Sverdrup Technology, Inc. Lewis Research Center Group Brook Park, Ohio O SUMMARY A noniterative finite-difference numerical method is presented for the solution of the incompressible Navier-Stokes equations with second-order File Size: 1MB.

A noniterative finite difference numerical method is presented for the solution of the incompressible Navier-Stokes equations with second order accuracy in time and space. Explicit treatment of convection and diffusion terms and implicit treatment of the pressure gradient give a single pressure Poisson equation when the discretized momentum and.

Get this from a library. Direct coupling methods for time-accurate solution of incompressible Navier-Stokes equations. [Woo Y Soh; United States.

National Aeronautics and. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 75 () NORTH-HOLLAND TIME ACCURATE SOLUTIONS OF THE INCOMPRESSIBLE AND THREE-DIMENSIONAL NAVIER-STOKES EQUATIONS Harry A. DWYER and Sokol IBRANI Department of Mechanical Engineering, University of California, Davis, Davis, California, U.S.A.

by: 4. A new pressure formulation for splitting methods is developed that results in high-order time-accurate schemes for the solution of the incompressible Navier-Stokes equations.

A new pressure formulation for splitting methods is developed that results in high-order time-accurate schemes for the solution of the incompressible Navier-Stokes equations. In particular, improved pressure boundary conditions of high order in time are introduced that minimize the effect of erroneous numerical boundary layers induced by Cited by: Solution methods for the Unsteady Incompressible Navier-Stokes Equations.

MEB/3/GI 2 Again an analytical solution of the Navier-Stokes equations can be derived: Unsteady Flow – Impulsive start-up of a plate For time-accurate simulations File Size: KB.

The full Navier‐Stokes equations are written in finite‐difference form, and the solution is accomplished by finite‐time‐step advancement. The primary. well as time-accurate solutions.

To demonstrate this capability, computed results for a wingtip wake vortex flowfield is presented in detail. In the following section, the governing equations and the present fractional step algorithm for the so- lution of the incompressible Navier-Stokes equations will be Size: 1MB.

ing a time-accurate solution for an incompressible flow arises from the fact that the continuity equation does not contain the time-derivative explicitly.

The constraint of mass conservation is achieved by an implicit coupling between the continuity equation and the pressure in the momentum equations. The solution of the incompressible Navier Stokes equations is discussed in this chapter and that of the compressible form postponed to Chapter It may appear logical to consider the two together and this can be done readily to the boundary layer equations, where the equation representing conservation of energy has to be added to complete the.

The full text of this article hosted at is unavailable due to technical difficulties. C.H. Liu and D.Y.C. Leung, Development of a finite element solution for the unsteady Navier–Stokes equations using projection method and fractional-θ-scheme, Computer Methods in Applied Mechanics and Engineering, (), ().

A time-accurate Cartesian grid based Navier-Stokes immersed boundary solver was utilized in the current study. The numerical results indicate that the pleated airfoil at a zero degree angle-of-attack generates the least drag despite its unconventional shape.

Athavale, M. and Merkle, C. L., “An Upwind Differencing Scheme for Time-Accurate Solutions of Unsteady Incompressible Flow”, to be presented at the First National Fluid Dynamics Congress, July 24–28,Cincinnati, OH.

*** DIRECT SUPPORT *** Author: Charles L. Merkle, Mahesh M. Athavale. A physics-based computational method is presented for the trajectory prediction of fully appended self-propelled underwater vehicles, including a rotating propeller.

The approach is to interactively couple the numerical solution of the three-dimensional unsteady incompressible turbulent Navier-Stokes equations with a six-degree-of-freedom (6-DOF) computational method.

() Artificial boundaries and formulations for the incompressible Navier–Stokes equations: applications to air and blood flows. SeMA Journal() A robust and accurate outflow boundary condition for incompressible flow simulations on severely-truncated unbounded by:   () Steady-state solution of incompressible Navier-Stokes equations using discrete least-squares meshless method.

International Journal for Numerical Methods in Fluids() An efficient method for the incompressible Navier–Stokes equations on irregular domains with no-slip boundary conditions, high order up to the by: NUMERICAL SOLUTION OF THE INCOMPRESSIBLE NAVIER STOKES EQUATIONS IN VELOCITY-VORTICITY VARIABLES ON UNSTAGGERED GRIDS, J.

Dacles and M. Hafez, presented in Institute of Mathematics and Its Application Conference on Numerical Methods for Fluid Dynamics, Reading, England. (50%) The Navier-Stokes equations (for an incompressible fluid) in an adimensional form three-dimensional, time accurate with extremely fine grids.

MEB/3/GI 6 Direct Numerical Simulation The objective is to solve the time-dependent NS equations resolving ALL the scale (eddies) for a sufficient time interval so that the fluid. The propagation of small perturbations in complex geometries can involve hydrodynamic-acoustic interactions, coupling acoustic waves and vortical modes.

A propagation model, based on the linearized Navier–Stokes equations, is proposed. It includes the mechanism responsible for the generation of vorticity associated with the hydrodynamic modes. The linearized Navier–Stokes Cited by: 2.Tenth International Conference on Numerical Methods in Fluid Dynamics A pseudospectral method for solution of the three-dimensional incompressible Navier-Stokes equations.

Pages Tenth International Conference on Numerical Methods in Fluid Dynamics Book Subtitle.Euler equations or Navier-Stokes equations. A disadvantage of the methods is that the computation efficiency is not enough to calculate state solution of equation (8), we can get the Y.

and Qiao, Z.D. Time Accurate 2D Navier-Stokes Calculations with a Dual-Time Stepping Method, Chinese Journal of Aeronautics, PP