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An efficient second-order projection method for viscous incompressible flow [Book Chapter]

Conference · · 10th Computational Fluid Dynamics Conference
DOI:https://doi.org/10.2514/6.1991-1560· OSTI ID:5835592
 [1];  [1];  [2]
  1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  2. University of California, Berkeley, CA (United States)
In this paper we describe a second-order projection method for the time-dependent, incompressible Navier-Stokes equations. The method is a second-order fractional step scheme in which one first solves diffusion-convection equations to determine intermediate velocities which are then projected onto the space of divergence-free vector fields. The diffusion-convection step uses a specialized second-order Godunov method for differencing the nonlinear convective terms that is conservative and free-stream preserving and provides a robust treatment of the nonlinearities at high Reynolds number. The projection is based on cell-centered centered difference approximations to divergence and gradient operators with the resulting linear system solved using a multigrid relaxation scheme. We apply the method to vortex spindown in a box to validate the numerical convergence of the method and to measure its overall performance.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Defense Advanced Research Projects Agency (DARPA); National Science Foundation (NSF)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
5835592
Report Number(s):
UCRL-JC--105252; CONF-910651--4; ON: DE91011533; CNN: DAALO3-88-K-0197; DMS-8919074; ACS-8958522
Conference Information:
Journal Name: 10th Computational Fluid Dynamics Conference
Country of Publication:
United States
Language:
English

References (1)

Numerical solution of the Navier-Stokes equations journal January 1968