home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!matt.ksu.ksu.edu!news
- From: lyn@matt.ksu.ksu.edu (Myself)
- Newsgroups: sci.geo.fluids
- Subject: Overpressure Wavefront Analysis
- Date: 20 Nov 1992 20:15:06 -0600
- Organization: Kansas State University
- Lines: 41
- Message-ID: <1ek63aINNjt8@matt.ksu.ksu.edu>
- NNTP-Posting-Host: matt.ksu.ksu.edu
- Summary: Request for formulae concerning modeling of an Overpressure Wavefront c
- Keywords: detonation, explosion, overpressure, wavefront, formulae
-
- [note - I have previously posted this on rec.pyrotechnics, who suggested I
- try this group]
-
- I am looking for formulae / equations / help useful for determining the
- form of abnormalities on the surface of an expanding wavefront caused by
- a medium-scale detonation.
- In normal english:
- Assuming and 'ideal' chemical detonation, with the explosive undergoing
- complete and balanced core ---> surface combustion, in an identical - gradient
- atmosphere, the resulting shockwave / overpressure wavefront would be a perfect
- sphere. Aside from the explosive itself, the surface of the sphere is deformed
- in a real atmosphere by variences in the pressure gradients of the surrounding
- atmosphere - 'eddies', or air currents - I need to know if there is a way to
- determine what the shape of the deformations in the surface of the shockwave
- would be (yes, I know that they would be miniscule, and swamped by the shockwave
- itself - that is why I cannot do this empiracly!). I know that this gets very
- complex in a rather annoyingly short time, but I need to know if it is possible
- to do without a CRAY, even for a small, single or double eddy simulation.
- The things I need specifically are :
- A) Formulae or equations for the fluid dynamics
- B) Suggestions for implementing A in a reasonable manner
- C) Any miscellaneous other help available
-
- Thank you all in advance, and gratituedes for reading this post,
-
- Myself (lyn@matt.ksu.ksu.edu)
- StormWind @ kids MUSH
- VERY amateur visualization programmer
- And many other irreleavant things
-
- P.S. This is completely theoretical, and as far as I can see, does not have any
- scientific value, other than edifying myself. (I can, however, post
- any results that may come up, if enough interest is shown)
-
-
-
- --
- This was brought to you by Myself(lyn@matt.ksu.ksu.edu) who is all things here.
- Head of Synergy Systems, a non-official group of aspiring hackers creating and
- distributing software for the common good. Head office:Terra, Sol system. We
- Flames accepted-and returned with interest and intelligence compounded.
-