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Orr-Sommerfield solver
Hi
Does anyone know of a Orr-Sommerfield solver using symbolic manipulation? Selvarajan |

Re: Orr-Sommerfield solver
Hi,
You mean that you are looking for a closed-form analytical solution? I doubt if it exists, but would be interested in it too. Right now, I have discretized the equation with higher-order finite differences to solve the problem (discrete eigenvalue problem). regs, chidu... |

Re: Orr-Sommerfield solver
Hi,
Pseudo-spectral collocation method gives best results for the discrete eigenvalue problems. You may find relative advantages of following this approach from Orzag's JFM paper (1972). Regards, Selvarajan |

Re: Orr-Sommerfield solver
Hi Selvarajan,
Yeah, I knew that, but since FD needed no preparation I just coded it up. It seems to work quite well! I think only if you want eigenvalues upto 10 decimal accuracy, or very high Reynolds numbers will FD be a problem. regards, chidu... |

Re: Orr-Sommerfield solver
Hi,
Does anyone know the best approach to solution for linear secondary instability problems? Selvarajan. |

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