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Archive of Advanced Engineering Science — Volume 53 (2021), Issue 2

Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-57
Title : High-efficient and High-precision Flood Process Simulation Based on the Non-uniform Grid
HOU Jingming, , WANG Junhui, , TONG Yu, , ZHANG Zhaoan, , GUO Minpeng, , SU Feng, , GAO Xujun,
Abstract : With the development of computer technology, grid division technology is becoming more mature. Considering the frequent occurrence of floods due to climate change, the broad extents of calculation domains, the wide range of actual terrain, and the study area usually has narrow and long gullies and wide flooding areas, this paper proposes a structured non-uniform grid model with hierarchical topological relationships combined with a high-resolution model based on GPU acceleration to simulate the
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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-58
Title : Macro and Micro Analysis on Instability Mechanism of Coal Measure Soil Slope Based on DEM-CFD Coupling Method
ZHANG Hong, , ZHANG Bang, , FENG Haoran, , WU Can,
Abstract : The macro mechanical properties of slope are determined by the meso parameters of soil particles and their motion. Although the stress and deformation characteristics of slope at the macro level can basically be obtained by the finite element method based on continuum model, it is difficult to reveal the deformation and instability mechanism of slope in the micro scale, and there are obvious limitations. The three-dimensional DEM-CFD model of fluid solid interaction of coal measure soil slope wa
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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-56
Title : Research Conception and Prospect of Rapid Stabilization and Resource Utilization Technology During Aerobic Fermentation Urban and Rural Mixed Organic Waste
WEI Zimin, , HUANG Caihong, , XIE Li, , YUAN Shaojun, , YANG Xingmin, , WU Junqiu,
Abstract : Urban and rural mixed organic waste, including perishable waste and partial agricultural waste, are high yield, complex composition, high water content and nutrient content. Aerobic fermentation is one of the key technologies for the utilization of this resource, but the application is limited in China due to the low conversion efficiency and unknown risk of by-products. Therefore, in view of the bottleneck problem of aerobic fermentation of organic waste in China, the resource utilization techn
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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-59
Title : Similar Materials and Mechanical Properties of Coal-Gas Two-phase Media Based on Solid-Gas Coupling
ZHANG Qinghe, , FANG Zhiyuan, , MA Yankun, , ZHANG Zheng,
Abstract : Gas-containing coal is a two-phase dielectric composite material with porous characteristics and solid-gas coupling characteristics. In order to accurately simulate the physical and mechanical properties of gas-containing coal, based on similarity criteria and similarity scales of main control parameters, with more than 80 sets of material matching tests and mechanical parameter tests, a similar material for coal-gas two-phase medium was developed. The similarity between similar materials and ra
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