三次元傾斜差分スキームの研究 : 室内空調気流解析への応用

概要

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Recently, treatment of the numerical heat transfer and fluid flow in airconditioning problems has become popular. Their solution may help to optimize the blowing direction from the air conditioner. In these problems, it is common that the grid line and velocity directions of the flow are not closely aligned, and the Peclet number of flow is large. A large error may result from the false diffusion when upstream differencing of convective terms in the conservation equations is used in that condition. Raithby introduced two new schemes for 2-D problems which reduced this error, but retained the advantages of upstream differncing: they are SUDS and SUWDS. In air-conditioning problems, multidimensionality is required. We propose two new schemes, SUDS-3D and SUWDS-3D, which extend Raithby schemes to 3-D problems. Solutions to some problems were obtained by our new schemes and compared with those obtained by conventional methods.
社団法人日本機械学会の論文
1990-10-25