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単相多次元熱流動解析コードAQUA -利用手引書-

Single-Phase multi-dimensional thermohydrauliC analysis code AQUA; Input Manual

村松 壽晴; 二ノ方 壽

not registered; Ninokata, Hisashi

1983年,米国アルゴンヌ国立研究所(ANL)より導入したCOMMIX-1Aコードを基本として,大幅な数値計算法の改良・整備および機能拡張を行い,単相多次元熱流動解析コードAQUA(Advanced simulation using Quadratic Upstream differencing Algorithm)を開発した。この,AQUAコード,1987年に実施された使用方法に係わる講習会(Version-1)を経て動燃事業団内に公開され,各種業務に関連する熱流動設計において数多くの具体的成果を提供してきた。本報は,AQUAコードの新機能(物質輸送モデル:Version-2,複数多次元モデル:Version-3)の使用方法について,Version-1(オリジナル)を含めた形で再編集した総合取扱い説明書である。

A single-phase multi-dimensional thermohydraulic analysis code AQUA has been developed to establish an analytical tool for the thermohydraulics in a reactor and the other main components of an LMFBR. AQUA is based on the reconstruction of COMMIX-IA, introduced from ANL in l983, which ranges from the improvements of numerics to the implementation of new functions. Main features of AQUA different from COMMIX-1A are as follows: (1)Original Model Version (version-1) (a)QUICK and QUICK-FRAM schemes as the discretization methods of the convection terms of transport equations (b)ICCG method as a Poisson-type matrix solver (c)k-$$varepsilon$$ two equation turbulence model (2)Mass Transport Model Version(version-2) (a)including the features of version-1 (b)transport evaluation of an arbitrary mass fragment (3)Multi Regions Model Version(version-3) (a)including the features of version-1 (b)coupled evaluation in multi-region multi-dimensional system

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