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Eulerian description of high-order bounce-back scheme for lattice Boltzmann equation with curved boundary.

Journal Article · · Eur. J. Phys.
We propose an Eulerian description of the bounce-back boundary condition based on the high-order implicit time-marching schemes to improve the accuracy of lattice Boltzmann simulation in the vicinity of curved boundary. The Eulerian description requires only one grid spacing between fluid nodes when second-order accuracy in time and space is desired, although high-order accurate boundary conditions can be constructed on more grid-point support. The Eulerian description also provides an analytical framework for several different interpolation-based boundary conditions. For instance, the semi-Lagrangian, linear interpolation boundary condition is found to be a first-order upwind discretization that changes the time-marching schemes from implicit to explicit as the distance between the fluid boundary node and the solid boundary increases.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
SC; City Univ. of New York
DOE Contract Number:
AC02-06CH11357
OSTI ID:
957387
Report Number(s):
ANL/MCS/JA-62150
Journal Information:
Eur. J. Phys., Journal Name: Eur. J. Phys. Journal Issue: 1 ; Apr. 2009 Vol. 171; ISSN 0143-0807; ISSN EJPHD4
Country of Publication:
United States
Language:
ENGLISH

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