TY - JOUR

T1 - Covariant velocity-based calculation procedure with nonstaggered grids for computation of pulsatile flows

AU - Lee, D.

AU - Chiu, J. J.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - A procedure for computing pulsatile flows in an arbitrary geometry is presented. The procedure is developed in a boundary-fitted coordinate system with a nonstaggered grid arrangement. The covariant velocity components are chosen as the dependent variables. To obtain the covariant velocities needed on the control surfaces, the physical contravanant velocities at the main grid are interpolated first and then convened to their covariant counterparts. A direct interpolation of the nonphysical covariant velocity components may induce a virtual velocity that leads to an erroneous solution. The procedure is employed to solve a moving indentation problem and a pulsatile backward-facing step flow.

AB - A procedure for computing pulsatile flows in an arbitrary geometry is presented. The procedure is developed in a boundary-fitted coordinate system with a nonstaggered grid arrangement. The covariant velocity components are chosen as the dependent variables. To obtain the covariant velocities needed on the control surfaces, the physical contravanant velocities at the main grid are interpolated first and then convened to their covariant counterparts. A direct interpolation of the nonphysical covariant velocity components may induce a virtual velocity that leads to an erroneous solution. The procedure is employed to solve a moving indentation problem and a pulsatile backward-facing step flow.

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U2 - 10.1080/10407799208944905

DO - 10.1080/10407799208944905

M3 - Article

AN - SCOPUS:0026864179

VL - 21

SP - 269

EP - 286

JO - Numerical Heat Transfer, Part B: Fundamentals

JF - Numerical Heat Transfer, Part B: Fundamentals

SN - 1040-7790

IS - 3

ER -