スガ　カズヒコ   Kazuhiko Suga   須賀　一彦    所属   追手門学院大学  理工学部 機械工学科    職種   教授
言語種別	英語
発行・発表の年月	2014/04
形態種別	外国学術誌（その他）
査読	査読あり
標題	An implicit gas kinetic BGK scheme for high temperature equilibrium gas flows on unstructured meshes
執筆形態	共著・編著（代表編著を除く）
掲載誌名	COMPUTERS & FLUIDS
掲載区分	国外
出版社・発行元	PERGAMON-ELSEVIER SCIENCE LTD
巻・号・頁	93,pp.100-106
担当区分	最終著者
著者・共著者	Weidong Li,Masayuki Kaneda,Kazuhiko Suga
概要	This paper presents an extension of the gas kinetic BGK scheme to simulate inviscous high temperature equilibrium gas flows on unstructured meshes. In the present scheme, the internal degree of freedom of the gas distribution function is variable according to an effective gamma, which is obtained through polynomial curve fits of thermodynamic properties of high temperature equilibrium air. With this method, the proper Euler equations for high temperature equilibrium airflows are recovered from the Boltzmann BGK equation. To accelerate the convergence of the present scheme, the matrix-free LU-SGS implicit time marching scheme is also developed. In addition,for demonstrating the effectiveness and accuracy of the present method, several inviscous airflow examples are also provided. The numerical results agree well with the results of previous studies and show that the present scheme is accurate and robust. (C) 2014 Elsevier Ltd. All rights reserved.
DOI	10.1016/j.compfluid.2014.01.015
ISSN	0045-7930/1879-0747
Put Code(ORCID)	41807876
PermalinkURL	http://www.scopus.com/inward/record.url?eid=2-s2.0-84893805880&partnerID=MN8TOARS
researchmap用URL	http://orcid.org/0000-0001-9313-1816