scholarly journals Nano-Continuum Modeling of a Nuclear Glass Specimen Altered for 25 Years

2014 ◽  
Author(s):  
Carl Steefel
Keyword(s):  
Continuum Modeling ◽  
Glass Specimen

scholarly journals Continuum modeling perspectives of non-Fourier heat conduction in biological systems

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ákos Sudár ◽  
Gergely Futaki ◽  
Róbert Kovács
Keyword(s):  
Biological Systems ◽  
Phase Lag ◽  
Dual Phase ◽  
Continuum Modeling ◽  
Biological Origin ◽  
Ultrasound Surgery ◽  
Thermal Models ◽  
Wide Range ◽  
Fourier Heat Conduction ◽  
The Continuum

Abstract The thermal modeling of biological systems is increasingly important in the development of more advanced and more precise techniques such as ultrasound surgery. One of the primary barriers is the complexity of biological materials: the geometrical, structural, and material properties vary in a wide range. In the present paper, we focus on the continuum modeling of heterogeneous materials of biological origin. There are numerous examples in the literature for non-Fourier thermal models. However, as we realized, they are associated with a few common misconceptions. Therefore, we first aim to clarify the basic concepts of non-Fourier thermal models. These concepts are demonstrated by revisiting two experiments from the literature in which the Cattaneo–Vernotte and the dual phase lag models are utilized. Our investigation revealed that these non-Fourier models are based on misinterpretations of the measured data, and the seeming deviation from Fourier’s law originates from the source terms and boundary conditions.

Triple-continuum modeling of shale gas reservoirs considering the effect of kerogen

2015 ◽  
Vol 24 ◽  
pp. 252-263 ◽  
Author(s):  
Min Zhang ◽  
Jun Yao ◽  
Hai Sun ◽  
Jian-lin Zhao ◽  
Dong-yan Fan ◽  
...  
Keyword(s):  
Shale Gas ◽  
Continuum Modeling ◽  
Gas Reservoirs ◽  
Shale Gas Reservoirs

Continuum modeling of cooperative traffic flow dynamics

2009 ◽  
Vol 388 (13) ◽  
pp. 2705-2716 ◽  
Author(s):  
D. Ngoduy ◽  
S.P. Hoogendoorn ◽  
R. Liu
Keyword(s):  
Traffic Flow ◽  
Flow Dynamics ◽  
Continuum Modeling

Continuum modeling of argon radio frequency glow discharges

1987 ◽  
Vol 50 (9) ◽  
pp. 492-494 ◽  
Author(s):  
Albert D. Richards ◽  
Brian E. Thompson ◽  
Herbert H. Sawin
Keyword(s):  
Radio Frequency ◽  
Continuum Modeling ◽  
Glow Discharges

Continuum modeling of post-implantation damage and the effective plus factor in crystalline silicon at room temperature

2006 ◽  
Vol 504 (1-2) ◽  
pp. 269-273
Author(s):  
H.Y. Chan ◽  
M.P. Srinivasan ◽  
F. Benistant ◽  
K.R. Mok ◽  
Lap Chan ◽  
...  
Keyword(s):  
Room Temperature ◽  
Crystalline Silicon ◽  
Continuum Modeling ◽  
Implantation Damage ◽  
Post Implantation

Simulation of the Response of Buried Pipelines to Slope Movement Using 3D Continuum Modeling

2012 ◽  
Author(s):  
Abdelfettah Fredj ◽  
Aaron Dinovitzer
Keyword(s):  
Fluid Pressure ◽  
Slope Movement ◽  
Ground Movement ◽  
Ground Subsidence ◽  
Continuum Modeling ◽  
Buried Pipelines ◽  
Design Standards ◽  
Codes Of Practice ◽  
Modeling Process ◽  
Ongoing Work

Pipeline integrity is affected by the action of external soil loads in addition to internal fluid pressure. External soil loads can be generated by landslides or at sites subject to ground subsidence, heave or seismic effects. Under these varied conditions of ground movement potential pipeline safety involves constraints on design and operations. The design processes includes developing an understanding of strains that could be imposed on the pipe (strain demand) and strain limits that the pipe can withstand without failure. The ability to predict the pipeline load, stress or strains state in the presence of soil restraint and/or soil displacement induced loading is not well described in design standards or codes of practice. This paper describes the ongoing work involved in a study investigating the mechanical behavior of buried pipelines interacting with active landslides. Detailed pipe-soil interaction analyses were completed with a 3D continuum SPH method. This paper describes the LS-DYNA numerical modeling process, previously developed by the authors, which was refined and applied to site-specific conditions. To illustrate the performance of the modeling process to consider a translational slide, additional numerical model validation was completed and is described in this paper. These comparisons illustrate that good agreement was observed between the modeling results and experimental full scale trial results. Sample results of the application of the validated 3D continuum modeling process are presented. These results are being used to develop generalized trends in pipeline response to slope movements. The paper describes both the progress achieved to date and the future potential for simplified engineering design tools to assess the load or deformation capacity requirements of buried pipelines exposed to different types of slope movement.

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