Numerical simulation of sedimentation process in reservoirs and development of a non-coupled algorithm to improve long-term modeling

2019 ◽  
Vol 34 (3) ◽  
pp. 279-294 ◽  
Author(s):  
Zeinab Khorrami ◽  
Mohammad Ali Banihashemi
Keyword(s):  
Numerical Simulation ◽  
Sedimentation Process

Numerical Simulation on Deformation Features and Filling Efficiency of Channel Goaf Foundation

2013 ◽  
Vol 353-356 ◽  
pp. 3707-3712
Author(s):  
Zhi Dong Zhou ◽  
Hong Bo Zhang ◽  
Xiu Guang Song ◽  
Hong Ya Yue
Keyword(s):  
Numerical Simulation ◽  
Comparative Analysis ◽  
Comprehensive Analysis ◽  
Obvious Effect ◽  
Before And After ◽  
Check Gate ◽  
Deformation Features ◽  
Natural Foundation ◽  
The Stability

For analyzing and evaluating the deformation features of channel goaf foundation and its effect on superstructure, according to the foundation reinforcement engineering of Ji-Liang Channel Check Gate, the comparative analysis on the differential settlement between the unfavorable foundation and natural foundation was performed by numerical simulation with FLAC3D. The computer results showed that the present foundation had obvious effect on the stability and security of the superstructure, so the engineering treatment are needed. Based on technical-economic comprehensive analysis among three treatment methods for strengthening the channel golf foundation with different kinds of filling, the reasonable method is put forward in this paper. By comparing mechanical characteristic of flashboard in channel goaf before and after strengthening, we confirmed the foundation stability of channel goaf and the security of the ground building which can satisfy the long term usage requirements.

Numerical simulation of long-term radiation effects for MOSFETs

2013 ◽  
Vol 25 (4) ◽  
pp. 1031-1034
Author(s):  
韦源 Wei Yuan ◽  
谢红刚 Xie Honggang ◽  
贡顶 Gong Ding ◽  
朱金辉 Zhu Jinhui ◽  
牛胜利 Niu Shengli ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Radiation Effects

Summer Thermal Stability of a Passive House in Moravany - The Czech Republic and Thermal Storage Mass

2016 ◽  
Vol 824 ◽  
pp. 544-551
Author(s):  
Martin Němeček ◽  
Miloš Kalousek
Keyword(s):  
Numerical Simulation ◽  
Thermal Stability ◽  
Czech Republic ◽  
Indoor Air ◽  
Passive House ◽  
The Czech Republic ◽  
Residential Units ◽  
Long Term Measurement ◽  
Thermal Stability Of

The article describes the summer thermal stability of a semidetached passive house in Moravany - Czech Republic. Long-term measurement was carried out on the uninhabited house. The house is divided into two symmetrically identical residential units. Indoor air temperature differences of these symmetrically identical rooms are compared. Comparative numerical simulation was also carried out.

Numerical Simulation of Vortex Induced Vibration Using the K-ε Model

2006 ◽  
Author(s):  
Juan B. V. Wanderley ◽  
Gisele H. B. Souza ◽  
Carlos Levi
Keyword(s):  
Numerical Simulation ◽  
Stokes Equations ◽  
Body Motion ◽  
Navier Stokes ◽  
Experimental Investigations ◽  
Real Problem ◽  
Navier Stokes Equations ◽  
Vortex Induced Vibration ◽  
Selection Of

Numerical simulations of Vortex Induced Vibration have been failing to duplicate accurately experimental data mostly due to the complexity of the physics involved in the real problem. Therefore, a careful and comprehensive investigation on CFD algorithms is still required to indicate the most suitable numerical scheme to handle such a complicate problem. Grid generation, boundary condition implementation, and coupling between the fluid flow governing equations and body motion equation are known to have strong influence on the qualities of the numerical results. This work presents results obtained from a long-term investigation featuring different CFD methods. The investigations enabled the selection of a very effective algorithm that showed an outstanding agreement between experiment and numerical simulation of the VIV phenomenon. Good agreement is obtained in the entire range of reduced velocity covered by the experimental investigations. The successful algorithm discussed here applies the Beam and Warming implicit scheme to solve the two-dimensional slightly compressible Navier–Stokes equations with the K-ε turbulence model to simulate the turbulent flow at the wake of the cylinder.

Long-Term Numerical Simulation of Methane Transport and Oxidation in Compost Biofilter

2009 ◽  
Vol 13 (3) ◽  
pp. 196-202 ◽  
Author(s):  
Lei Yuan ◽  
Tarek Abichou ◽  
Jeff Chanton ◽  
David K. Powelson ◽  
Alex De Visscher
Keyword(s):  
Numerical Simulation
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