(2020) Building Geometry Simplification for Improving Mesh Quality of Numerical Analysis Model
Journal : applied sciences 10(16), 5425
Author : Gwanyong Park, Changmin Kim, Minhyung Lee, Changho Choi*
Abstract
Numerical analysis, especially the finite volume method (FVM), is one of the primary approaches employed when evaluating a building environment. A complicated geometry can degrade the mesh quality, leading to numerical diffusions and errors. Thus, this study develops and evaluates an automatic building geometry simplification method based on integrating similar surfaces for the geometry of an indoor space. A regression model showed that the complexity of the simplified geometry and its similarity to the original geometry decreased linearly with the threshold of the method. The mesh quality was significantly improved by the simplification. In particular, the maximum skewness decreased exponentially with the threshold of the method. It is expected that the simplification method and regression model presented in this study can be used to quantitatively control the mesh quality.
Keywords : automation; building model; geometry simplification; finite volume method; mesh quality; model design
Download Link : https://doi.org/10.3390/app10165425
Journal : applied sciences 10(16), 5425
Author : Gwanyong Park, Changmin Kim, Minhyung Lee, Changho Choi*
Abstract
Numerical analysis, especially the finite volume method (FVM), is one of the primary approaches employed when evaluating a building environment. A complicated geometry can degrade the mesh quality, leading to numerical diffusions and errors. Thus, this study develops and evaluates an automatic building geometry simplification method based on integrating similar surfaces for the geometry of an indoor space. A regression model showed that the complexity of the simplified geometry and its similarity to the original geometry decreased linearly with the threshold of the method. The mesh quality was significantly improved by the simplification. In particular, the maximum skewness decreased exponentially with the threshold of the method. It is expected that the simplification method and regression model presented in this study can be used to quantitatively control the mesh quality.
Keywords : automation; building model; geometry simplification; finite volume method; mesh quality; model design
Download Link : https://doi.org/10.3390/app10165425