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DNS of homogeneous shear flow: comments please! |
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September 11, 2002, 20:33 |
DNS of homogeneous shear flow: comments please!
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#1 |
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Dear DNS community:
First, I am brand new to DNS; this is the first problem I am trying to solve. I've done a literature search about the details of DNS for homogeneous shear flows. I've put together my notes into a MS Word document. The document describes the development of the equations that (I think) are actually programmed: starting with the general governing equations for the fluctuating velocity. Most of the content is from Rogallo (1977, 1981) and Canuto et al. (1988). This is only a first draft, but I'd like to get a response from anyone that has experience in DNS of homogeneous shear flows. The main thing I am concerned about are the steps that I list, at the end of the document, to solve the problem. They are very general, and I want to know if I am leaving any major logical step out. I'm not concerned at this point about details of the step size, control of aliasing errors, or re-meshing the domain. If anyone sees errors in the development of the final equations or if you know of a more robust and efficient way of setting up the equations, I would very much appreciate a response. As I said, the file is a MS Word document prepared on a Macintosh. It will open on a PC though. If it is more convenient for me to post it as a PDF file, let me know, I could probably do that too. The link for the file is on the page: www.angelfire.com/falcon/ff_fan (It is the only link on the page) Thanks in advance for any comments you may have. Cheers, ff_fan |
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September 12, 2002, 03:28 |
Re: DNS of homogeneous shear flow: comments please
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#2 |
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The equations after the coordinate transformation can be found in Jacobitz et al. (1997), JFM 342, pp. 231-261. Actually, I am doing DNS of homogeneous shear flow right now. It is, however, not very easy to do something new in this area. A lot has been publiced on this topic already.
By the way, I am not able to read word-documents. Tom |
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