第７３回流体懇話会のご案内
平成１４年１月２９日
流体懇話会を下記のように開催いたします。どうぞご参加下さい。
講師：AISO, Hideaki, MARINOVA, Rossitza, TAKAHASHI, Tadayasu
(CFD Research Center, National Aerospace Laboratory.)
演題：Consistency and Inconsistency between the Continuous and
Discrete Models.
（差分近似法の適合性：いくつかの解析結果）
内容:
The numerical computation for physical phenomena includes two
different kinds of modeling. First we establish partial differential
equations that model physical phenomena. The equations are continuous
models. For numerical computation we still need another modeling,
i.e. we discretize the partial differential equations to obtain
numerical schemes. These are so-called discrete models. The two
modelings are different things, even though they are sometimes
confusing. The discrete models should be obtained from the continuous
models by some mathematical thinking, while the continuous models are
given by discussion mainly in physics.
It is always expected that the discrete models should be consistent
with all the properties of continuous models. But it is impossible.
Therefore we have to choose which kind of consistency is important
for each case of numerical computation, while it is not yet an easy
problem. For the purpose we still need mathematical analyses for the
consistency and inconsistency.
We here discuss some properties of discrete models from the view-
point of consistency and inconsistency with the continuous models. We
introduce some analysis on dog-leg phenomenon, carbuncle phenomenon
etc., which may happen in numerical calculation for compressible Euler
equations. We also discuss the conservation consistency of difference
schemes for incompressible Navier-Stokes equations.
(The talks will be given in English.)
日時： ２月７日（木） １６：３０〜１８：００
場所： 電気通信大学 東４号館８階ＡＶ会議室（８０２号室）
流体懇話会事務局（電気通信大学）
流体懇話会事務局
（電気通信大学）
電話：0424-43-5394
ＦＡＸ：0424-84-3327
e-mail：nagare@maekawa.mce.uec.ac.jp
流体懇話会のお知らせ
連絡は懇話会事務局(naoya@miyazaki.mce.uec.ac.jp) まで
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