[FLASH-BUGS] assymetrie in hydro flash 2.1 and 2.3

From: Markus Gross (m.s.gross@hw.ac.uk)
Date: Tue Jun 10 2003 - 14:21:05 CDT

  • Next message: Katherine M Riley: "Re: [FLASH-BUGS] setup internal error in FLASH2.3"

    Hi again!

    I have now ported an example to 2.3 and I get similarly wrong results. The
    setup is attached. There are as well some images in the tar file which
    hopefully help to illustrate my problem. Where scalar values are indicated in
    the images, don't be surprised, all values occur twice, this is a feature of
    the vis-program. These are noniterpolated values though and hence you should
    be able to reproduce them with any tool - all images are generated from the
    10th plotfile.

    image1.gif - the whole simulation domain, three planes for visualization
    (xy,xz,yz)

    The xy plane is the one where it goes wrong, shown in image2.gif - it looks
    fairly symmetric, but it is not.. (btw. this plane is one cell away from the
    boundary condition)

    image4.gif-image9.gif show the scalar values around the colored region in
    anticlockwise order. You'll see that there is symmetry with respect to
    top-bottom left-right, but the values on the right side are not the same
    compared with the respective positins along top or bottom.

    I hope I did not miss anything vital in my hack style port to 2.3 ...

    I am looking forward to hearing from you and will investigate further.

    Regards,

    Markus

    -- 
    _______________________________________________________________
    

    Markus Gross AMIMechE BEng (Hons.) Mechanical Engineering

    Heriot Watt University Edinburgh School of Engineering and Physical Sciences James Nasmyth Building Edinburgh EH14 4AS UK

    Member of IMechE, SPIE, CSME and VDI _______________________________________________________________

    further contact:

    Phone : +44 (0) 131 451 4737

    UNiX talk: talk markus@lasersim.mce.hw.ac.uk

    _______________________________________________________________

    "Plans are a place to begin," Grove said. "They rarely deliver you to where you expect. Make your plans knowing you are going to throw them away."

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