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- - **Formula for 2nd order upwind scheme for non-uniform grids?**
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Formula for 2nd order upwind scheme for non-uniform grids?Hi,
I've seen the formula for 2nd order upwind scheme for uniform grids as: phi_e = 1.5*phi_P - 0.5*phi_W for u_e > 0 phi_e = 1.5*phi_E - 0.5*phi_EE for u_e < 0 Is there a formula meant for non-uniform grids as well? Thanks |

Quote:
I suggest to construct a second degree polynomial on non-uniform stencil in such a way that if u_e>0 then Phi_W,Phi_P, Phi_E are involved (the counterpart for u_e<0 involves Phi_P,Phi_E, Phi_EE). This way the use of Phi_P ensures better stability properties |

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