Experimental and Numerical Study on the Permeation Grouting Diffusion Mechanism considering Filtration Effects by Guangxuan Zhu, Qingsong Zhang, Rentai Liu, Jiwen Bai, Wei Li, Xiao Feng

“…The comparative results showed that the proposed numerical method can match the laboratory tests well. Finally, the effects of the grout flow velocity and the water/cement ratio of the grout on the diffusion mechanism are also discussed.…”
Get full text

A Note on the Use of Generalized Sundman Anomalies in the Numerical Integration of the Elliptical Orbital Motion by José Antonio López Ortí, Francisco José Marco Castillo, María José Martínez Usó

“…In addition, the perturbed problem must be solved using a numerical method and its efficiency depends on the selected coordinate system and the corresponding time. …”
Get full text

Numerical Analyses on Deformation and Failure Characteristics of Surrounding Rock of Gob-Side Entry Retention by Roof Cutting by Qunying Wu, Binhui Liu, Jun Yang, Yajun Wang, Kuikui Chen, Yu Cheng

“…Finally, by using this numerical method, the effects of roadway width, temporary support, and coal side support on the failure of the roof and the arc coal side are studied.…”
Get full text

Simulation Analysis of Air Flow and Turbulence Statistics in a Rib Grit Roughened Duct by I. I. Vogiatzis, A. C. Denizopoulou, G. K. Ntinas, V. P. Fragos

“…Furthermore, the applied numerical method is capable of capturing small-scale flow structures resulting from the direct solution of Navier-Stokes and continuity equations.…”
Get full text

Stability Analysis of Irregular Cavities in Tunnel Using Geomagic-COMSOL Coupling Method by Shangqu Sun, Chengshuai Qin, Hongbo Wang, Liping Li, Yongliang Huang

“…We also developed the Geomagic-COMSOL coupling numerical method to conduct the stability analysis of irregular cavities. …”
Get full text

Numerical Simulation of Dynamic Response of Submerged Floating Tunnel under Regular Wave Conditions by Wenlong Luo, Bo Huang, Yao Tang, Hao Ding, Ke Li, Liang Cheng, Qingyang Ren

“…In this model, wave-induced hydrodynamic loads are estimated by the Morison equation for a moving object, and the simplified governing differential equation of the tunnel with mooring cables is solved using the fourth-order Runge–Kutta and Adams numerical method. The numerical results are successfully validated by direct comparison against published experimental data. …”
Get full text

Upper-Bound Finite Element Adaptive Analysis of Plane Strain Heading in Soil with a Soft Upper Layer and Hard Lower Layer by Jian Zhang, Li Ding, Yu Liang, Jingyao Zong, Zhenya Li

“…The results compare reasonably well with those in the literature and those from the numerical method.…”
Get full text

Investigation on Reinforced Mechanism of Fiber Reinforced Asphalt Concrete Based on Micromechanical Modeling by Ying Gao, Qinglin Guo, Yanhua Guo, Pingchuan Wu, Wenqing Meng, Tongye Jia

“…However, internal interactions between fiber and other phases of asphalt concrete are unclear although experimental methods have been used to design the FRAC successfully. In this paper, numerical method was used to investigate the reinforced mechanism of FRAC from microperspective. 2D micromechanical model of FRAC was established based on Monte Carlo theory. …”
Get full text

Investigation into Shock Control and Drag Reduction Characteristics of Opposing Plasma Synthetic Jet in Mach 8 Flow by Xudong Zhang, Hao Dong, Xingyu Cao, Yan Zhou, Wei Xie, Wei Song, Yan Wang

“…Subsequently, the numerical method was verified in detail and the effects of different discharge energies and nozzle diameters on the drag reduction characteristics of the opposing PSJ were studied. …”
Get full text

Hopf Bifurcation Characteristics of Dual-Front Axle Self-Excited Shimmy System for Heavy Truck considering Dry Friction by Daogao Wei, Ke Xu, Yibin Jiang, Changhe Chen, Wenjing Zhao, Fugeng Zhou

“…The consistency of results of the qualitative and numerical methods shows that qualitative methods can predict the bifurcation characteristics of shimmy systems. …”
Get full text

EVALUATION OF THE EFFICIENCY OF THE DEVICE FOR LIMITING TENSION OF THE WIRE IN A SHORT CIRCUIT by I. I. Sergey, E. G. Panamarenka, Ya. A. Potachits

“…The damper is installed between the portal and the insulator string and limits the transmission of undesirable forces on the portals in a short circuit. The numerical method of calculation of dynamics of flexible wires of switchgear and overhead lines in a short-circuit taking into account influence of a tension damper has been developed. …”
Get full text

Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature Sensing by Zhaokun Yan, Shubin Yan, Ziheng Xu, Changxing Chen, Yuhao Cao, Xiaoran Yan, Chong Wang, Taiquan Wu

“…The characterization of nanoscale sensors is considered using an approximate numerical method (finite element method). The simulation results show that the sharp asymmetric resonance generated by the interaction between the discrete narrow-band mode and the continuous wideband mode is called Fano resonance. …”
Get full text

Visualization of Gas Diffusion-Sorption in Coal: A Study Based on Synchrotron Radiation Nano-CT by Yingfeng Sun, Yixin Zhao, Hongwei Zhang, Cun Zhang

“…The gas diffusion-sorption coupled model and numerical method can help to investigate the effect of microstructure on gas diffusion and ad-/desorption and provides a possibility to investigate the multiscale gas transportation and adsorption in coal pore-fracture system.…”
Get full text

A Coupling Method of New EMFE and FE for Fourth-Order Partial Differential Equation of Parabolic Type by Yang Liu, Hong Li, Zhichao Fang, Siriguleng He, Jinfeng Wang

“…We propose and analyze a new numerical method, called a coupling method based on a new expanded mixed finite element (EMFE) and finite element (FE), for fourth-order partial differential equation of parabolic type. …”
Get full text

Investigation of the Aerodynamic Characteristics of Platoon Vehicles Based on Ahmed Body by Jianbin Luo, Ke Mi, Dongli Tan, Zhiqing Zhang, Mingsen Li, Jun Qing, Huiqiong Huang

“…Firstly, the realizable k-ε model was used to verify the numerical method based on a single 35° Ahmed body. Then, the aerodynamic characteristics such as drag characteristics, surface pressure, wake structure, and turbulent kinetic energy distribution were analyzed for the platoon of two and three 35° Ahmed bodies. …”
Get full text

Modeling of Functionally Graded Material Shells by Khalil Sihame, Elmhaia Oussama, Hamdaoui Abdellah, Braikat Bouazza, Hu Heng, Boukamel Adnane, Damil Noureddine

“…In this research, we propose an algorithm to study the buckling of thin Functionally Graded Material (FGM) shells, utilizing a novel implementation of the asymptotic numerical method (ANM). Our approach integrates a three-step process: representation of variables and loading conditions through a truncated Taylor series, discretization using the finite element method (FEM), and advancement via a continuation method. …”
Get full text

Numerical Study on the Movement Laws of Overlying Strata in Shallow-Buried Stope Based on the Goaf Compaction Effect by Guangchao Zhang, Guangzhe Tao, Miao Chen, You Li, Pan Li, Yonghui Lai

“…The comparison between the numerical and field measurement results demonstrates that the new evaluation method using shear-tensile strain behaviors can accurately predicate the height of the two zones. The proposed numerical method could be a viable alternative approach to two zones height calculation.…”
Get full text

Numerical and Experimental Identification of Seven-Wire Strand Tensions Using Scale Energy Entropy Spectra of Ultrasonic Guided Waves by Ji Qian, Xin Chen, Limin Sun, Guowen Yao, Xu Wang

“…This paper proposes a method to identify strand tensions based on scale energy entropy spectra of ultrasonic guided waves (UGWs). A numerical method was first developed to simulate UGW propagation in a seven-wire strand, employing the wavelet transform to extract UGW time-frequency energy distributions for different loadings. …”
Get full text

Thermo-Magneto-Solutal Squeezing Flow of Nanofluid between Two Parallel Disks Embedded in a Porous Medium: Effects of Nanoparticle Geometry, Slip and Temperature Jump Conditions by M. G. Sobamowo, A. T. Akinshilo, A. A. Yinusa

“…In order to verify the accuracy of the developed analytical solutions, the results of the homotopy perturbation method are compared with the results of the numerical method using the shooting method coupled with the fourth-order Runge–Kutta, and good agreements are established. …”
Get full text

An Analysis of Loess Tunnel Failure and Its Mechanism by Shuai Shao, Shengjun Shao, Jun Li, Bing Qiu

“…The formation mechanism of different failures in the course of loess tunnel construction is revealed by numerical analysis, in which the structural property of loess, loess strata, geological conditions, and excavating and supporting actions are simulated by the numerical method. A reference is provided for the prevention and remediation of engineering failures of a loess tunnel.…”
Get full text