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J. Cent. South Univ. (2020) 27: 592-607 DOI: https://doi.org/10.1007/s11771-020-4319-9 Effects of axial static stress on stress wave propagation in rock considering porosity compaction and damage... Nature 2020 Abstract: A wave equation of rock under axial static stress is established using the equivalent medium method by modifying the Kelvin-Voigt model. The analytical formulas of longitudinal......
J. Cent. South Univ. Technol. (2008) 15: 361-367 DOI: 10.1007/s11771-008-0068-x Numerical simulation for explosion wave propagation of combustible mixture gas WANG Cheng(王 成), NING Jian-guo(宁建国... to investigate the effects of duct boundary conditions and ignition positions on the propagation law of explosion wave for hydrogen and methane-based combustible mixture gas. In the code, Young’s technique......
J. Cent. South Univ. Technol. (2007)06-0814-06 DOI: 10.1007/s11771-007-0155-4 Dynamic simulation of hydrodynamic model of drum level wave action and sloshing CAO Xiao-hua(曹晓华)1,2... wave action and sloshing, based on the method of modularization modeling, the hydrodynamic model of drum level wave action and sloshing was developed, and dynamic simulation researches were carried out......
Scattering wave field around a cavity with circular cross-section embedded in saturated soil using boundary element methodZHANG Hong(张鸿)1, 2, GAO Qian(高谦)1, XU Bin(徐斌)2(1. School of Civil...)Abstract:Based on Biot’s theory and considering the properties of a cavity, the boundary integral equations for the numerical simulation of wave scattering around a cavity with a circular cross-section......
characteristics of silt, a series of tests (i.e., freeze-thaw cycling tests, vibration triaxial tests and ultrasonic wave velocity tests) were conducted and two kinds of silt (i.e., salt-free and 3%-salt silt..., compared to salt-free silt, the decrement of dynamic shear strength and dynamic modulus of silt with 3% salt is more significant, but the damping ratio of 3%-salt silt is larger. In ultrasonic wave......
J. Cent. South Univ. (2016) 23: 405-412 DOI: 10.1007/s11771-016-3085-1 Mass transfer enhancement for LiBr solution using ultrasonic wave HAN Xiao-dong(韩晓东), ZHANG Shi-wei(张仕伟), TANG Yong(汤勇), YUAN... solar energy with ultrasonic wave, while the mechanism of ultrasonic wave strengthening boiling mass transfer in LiBr solution was also analyzed with experiment. The experimental results indicate......
-time wave velocity measurement WU Zhi-jun(吴志军)1, WANG Zhi-yang(王智洋)1, FAN Li-feng(范立峰)2,WENG Lei(翁磊)1, LIU Quan-sheng(刘泉声)1 1. School of Civil Engineering, Wuhan University, Wuhan 430072, China; 2... Abstract: In this study, the micro-failure process and failure mechanism of a typical brittle rock under uniaxial compression are investigated via continuous real-time measurement of wave velocities......
性关系,用该方法计算研究区饱和度精度较高.关键词:毛管压力；饱和度；J函数；孔隙半径Calculation of average capillary pressure curve using hole volumeGUO Xiao-bo(Exploration and Development Research Institute of Daqing Oilfield Co. Ltd., Daqing 163712, China)Abstract:Based on the method of capillary to calculate saturation, the hole volume was proposed to rebuild the theoretical capillary pressure curve, which stands for the average......
验装置示意图 Fig. 3 Pictorial diagram of test device of capillary water rising 2 结果与分析 2.1 不考虑温度,气压影响的毛细水上升规律 观测1号管和2号管尾矿砂中毛细水稳定后,1号管毛细水上升最大高度为142.5 cm,2号管为142.6 cm,取1,2号管的相同时间点测定高度的平均值为毛细...上升规律曲线 Fig. 4 Curve of capillary water rising 毛细水上升高度(H)与时间(t)的测记值用幂函数进行回归方程为 H=53.674t0.216 ......
Effect of material parameters on stress wave propagation during fast upsetting WANG Zhong-jin(王忠金), CHENG Li-dong(程利冬) School of Materials Science and Engineering, Harbin Institute of Technology... equipment. The stress wave propagation and its effect on the deformation were analyzed by the stress and strain distributions. Industrial pure lead, oxygen-free high-conductivity (OFHC) copper and 7039......
