Selection of air conditioning（AC） cold/heat sources generally concerns about certain aspects and cannot reveal the whole profile of the problems. Grey relation analysis （GRA） is a data processing method to categor...Selection of air conditioning（AC） cold/heat sources generally concerns about certain aspects and cannot reveal the whole profile of the problems. Grey relation analysis （GRA） is a data processing method to categorize the correlation extent of compared sequences and a certain reference sequence in a system with uncertain information. It is applied to evaluating and selecting AC cold/heat sources from four main aspects, which are technology, economy, reliability, and operation and management. Case study shows that the result for selecting AC cold/heat sources with the GRA method can be more reasonable and convincible. Thus it offers a new approach for designers in heating, ventilating and air conditioning field to compare and evaluate different AC cold/heat sou rces.展开更多
The fluid-in-cell （FLIC） approach of Gentry et al. （1966） is extended to second-order accuracy in space and applied to solve the 2D shallow water equations with topography. The FLIC method can be interpreted in a ...The fluid-in-cell （FLIC） approach of Gentry et al. （1966） is extended to second-order accuracy in space and applied to solve the 2D shallow water equations with topography. The FLIC method can be interpreted in a finite volume sense, it therefore conserves both water mass and momentum. Like the original FLIC method the second-order FLIC method presented here is able to handle wetting-drying fronts without any special treatment. Moreover, the resulting method is shock capturing and well-balanced, satisfying both the C- and extended C-properties exactly. Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.展开更多
文摘Selection of air conditioning（AC） cold/heat sources generally concerns about certain aspects and cannot reveal the whole profile of the problems. Grey relation analysis （GRA） is a data processing method to categorize the correlation extent of compared sequences and a certain reference sequence in a system with uncertain information. It is applied to evaluating and selecting AC cold/heat sources from four main aspects, which are technology, economy, reliability, and operation and management. Case study shows that the result for selecting AC cold/heat sources with the GRA method can be more reasonable and convincible. Thus it offers a new approach for designers in heating, ventilating and air conditioning field to compare and evaluate different AC cold/heat sou rces.
基金supported by the International Hurricane Research Center,Florida International University
文摘The fluid-in-cell （FLIC） approach of Gentry et al. （1966） is extended to second-order accuracy in space and applied to solve the 2D shallow water equations with topography. The FLIC method can be interpreted in a finite volume sense, it therefore conserves both water mass and momentum. Like the original FLIC method the second-order FLIC method presented here is able to handle wetting-drying fronts without any special treatment. Moreover, the resulting method is shock capturing and well-balanced, satisfying both the C- and extended C-properties exactly. Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.
