channelflow.org

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== EQ7,8 ======

{{gtspring2009:pc.jpg}} Sure the same pair of equilibria, discovered independently at what might have been the same time (unless they are real pros and know how to write their results up quickly). Should we invite Itano to join the wiki (apparently he has not responded to Jonathan)? Or post the graphs and a brief summary on some public homepage?  --- //[[predrag.cvitanovic@physics.gatech.edu|Predrag Cvitanovic]] 2009-04-10 09:42//

{{gtspring2009:gibson.png?24}} Comparison of Itano & Generalis solution (left fig) to EQ7,8 (right fig) via D vs Re continuation. His τ is out D. I continued our EQ7 to IG's α,γ = 1,2 cell size and continued it in Re. Graphs are identical to eye (sorry the graphs don't line up exactly, it's really hard to do that.) IG give the bifurcation point as roughly Re=174 at this α,γ, and that's what I get, too. The continuation is still running. I'll fill out the upper branch for Re>210 tomorrow when it's done. //John Gibson 2009-04-09 19:24 EST // Update: done, slight discrepancy near D=5, probably just discretization. //2009-04-09 23:29 EST //


{{gtspring2009:gibson:itano_prl_red.png?300}} {{gtspring2009:gibson:eq8a1g2_red.png?320}} 



:-D  to	Tomoaki Itano //<itano@ipcku.kansai-u.ac.jp>//:
\\
Dr Itano, I've received a copy of your paper through one of my colleagues.  (I'm
currently without a university affiliation).  It is very interesting.
Your new equilibria seem similar to those that we refer to as EQ7 and
EQ8, and what Schmiegel referred to as σ in his 1999 thesis.
But, without a copy of your data we cannot say for sure.  Have you
compared your solution to the ones that we have posted at
www.channelflow.org? ---  // [[http://www.cns.gatech.edu/~jhalcrow/|The Prodigal Son]] 2009-04-08//

{{gtspring2009:gibson.png?24}}  Professors these days --don't they read anything? The database also
shows the first posting: 2008-05-09. We should note in the paper and in a note to
Itano that EQ8 was likely first discovered by Schmiegel in 1999. I'll
do what I can to verify that the Schmiegel, our EQ8 and Itano solutions are the same. ---  // John Gibson 2009-04-08//

:-D  My earliest record is the svn  commit 552 to n00bs on May 6 by John,  in
which he says "2 new EQB pairs for narrow box, one NB/NB2-like, one EQ5/EQ6-like.
Found from exhaustive search on a long-lived NB unstable manifold trajectory.
Eigenvalues to follow." Did Itano send you guys his data?  I haven't heard from him
since the email below.
---  // [[http://www.cns.gatech.edu/~jhalcrow/|The Prodigal Son]] 2009-04-08//

{{gtspring2009:pc.jpg}} I'm writing this to a referee: "... one of our solutions (EQ8 found by John Gibson
on May 6, 2008, posted on [[http://arxiv.org/abs/0808.3375|arXiv.org:0808.3375]] Aug 25, 2008) was discovered independently and a letter submitted to PR Lett. on Aug 20, 2008 [[http://link.aps.org/doi/10.1103/PhysRevLett.102.114501|[Itano and Generalis 2009]]]. This single solution was [...] published as a cover article of Physics Review Letters."

:-D  to	Tomoaki Itano //<itano@ipcku.kansai-u.ac.jp>//:
\\
Dr Itano, Congratulations on making the cover of PRL.  I would be happy to
compare your solution to the ones we've found.  Along with the data,
could you please also send me a copy of your paper?  We have our
solutions posted at
[[http://www.channelflow.org/dokuwiki/doku.php/database|Channelflow.org/dokuwiki/doku.php/database]] if you'd like to
see them. ---  // [[http://www.cns.gatech.edu/~jhalcrow/|The Prodigal Son]] 2009-03-24//

8-) Tomoaki Itano to Harclow:
\\
My name is Tomoaki Itano and I am the corresponding author
of the recent article [[http://link.aps.org/doi/10.1103/PhysRevLett.102.114501|Phys Rev Lett 102, 114501 (2009)]]
that has actually made the cover of the Journal for its current issue.
We had a lengthy refereeing process that lasted for many months.
In fact, we, my collaborator and I, had the results ready for publication
for sometime now, but there was some discomfort from the referees to
publish our __new Couette__ solution.

At the final stage of this refereeing process,
one of the referees asked us to contact your group
for the purpose of comparing our results, pointing out to us
your paper that you have submitted on the preprint archive.
We take this opportunity therefore to make contact with you and
perhaps compare data and/or opinions about the
data presented in our independent works.
\\
Yours sincerely,
Tomoaki Itano, PhD. ---  //<itano@ipcku.kansai-u.ac.jp> Mar 24, 2009//
channelflow.org

User Tools

Site Tools

Page Tools
