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Molinero Guerra, A. (author), Mokni, N. (author), Cui, Y-J. (author), Tang, A.M. (author), Delgade, P. (author), Aimedieu, P. (author)
The MX80 powder/pellets mixture is one of the candidate sealing plugs used in deep radioactive waste disposal because of its swelling properties and operational advantages (lower compaction effort, reduced gaps between the rock and the seal). The present work focuses on the microscopic scale of the material, which is studied using several...
conference paper 2016
document
Liu, Z. (author), Shao, J. (author), Tang, Y. (author)
An experimental study was carried out on the time-dependent mechanical and transport behaviors of the Callovo-Oxfordian (Cox) argillite, the geological barriers for high-level radioactive waste disposal in France. Six coupled one-step creep tests under the same confining pressure 6MPa and different deviatoric stresses were proposed to...
conference paper 2016
document
Xiao, T. (author), Li, D. (author), Cao, Z. (author), Tang, X. (author)
Stochastic finite element method and random finite element method can provide rigorous tools for slope reliability analysis incorporating spatial variability of soil properties. However, both of them are difficult to be applied into practice due to the modification of finite-element codes and the low efficiency, respectively. To address these...
conference paper 2015
document
Xiong, W. (author), Zhu, G. (author), Tang, J. (author), Dong, B. (author), Han, N. (author), Xing, F. (author), Schlangen, H.E.J.G. (author)
Poly (urea-formaldehyde) (PUF) shelled dicyclopentadiene (DCPD) microcapsules were prepared by in-situ polymerization technology for self-healing concrete applications. It’s found, during the process, sodium dodecyl benzene sulfonate (SDBS) behaves better in emulsification of DCPD than other surfactant of sodium lauryl sulfate (SLS) and styrene...
conference paper 2013
document
Zhu, G. (author), Zhou, Y. (author), Wu, Z. (author), Tang, J. (author), Dong, B. (author), Han, N. (author), Xing, F. (author)
The microcapsules of epoxy E-51 resin encapsulated by cured itself were prepared by interfacial curing reaction, in which ethylenediamine (EDA) was employed as curing agent and sulfonated copolymer of styrene and maleic anhydride (SMA) as emulsifying agent. It’s found the morphology of microcapsules strongly depend on reaction time and EDA...
conference paper 2013
document
Zhu, G. (author), Lü, L. (author), Tang, J. (author), Dong, B. (author), Han, N. (author), Xing, F. (author)
For epoxy microcapsules embedded in concrete as mechanic-triggered self-healing adhesive, globular shape with uniform size is the basic requirement to ensure the solid shell broken and the liquid core released at a designed stress. In this paper, monodispersed melamine–formaldehyde (MF) resin-walled epoxy E-51 microcapsules were successfully...
conference paper 2013
document
Zhu, G. (author), Wu, Z. (author), Zhou, Y. (author), Tang, J. (author), Dong, B. (author), Han, N. (author), Xing, F. (author)
Epoxy E-51/UF resin microcapsules were prepared by traditional two-stepped in situ polymerization method and processing parameters affecting the final microcapsules’ shape and size were carefully studied in the aim to obtain microcapsule with ideally spherical shape and uniform size. It’s found the polycarboxylate surfactant of SMA (styrene...
conference paper 2013
document
Tang, J.H. (author), Jiang, B. (author)
A numerical calculation procedure based on the least-squares finite element method (LSFEM) is employed to study the fluid flow and heat transfer in a 3-D heat exchangers with in-lined and staggered multiple-row (4 rows) tubes. In this study, the fin pitch of the heat exchanger is 8 fins per inch and the fluid flow is assumed steady,...
conference paper 2006
document
Tang, J.M. (author), Vuik, C. (author)
Simulating bubbly flows is a very popular topic in CFD. These bubbly flows are governed by the Navier-Stokes equations. In many popular operator splitting formulations for these equations, solving the linear system coming from the discontinuous diffusion equation takes the most computational time, despite of its elliptic origins. Sometimes these...
conference paper 2006
document
Liu, Y. (author), Tang, Q. (author), Fox, R.O. (author)
Computational fluid dynamics (CFD) is a useful tool for modeling chemical reactors. However, because the design goals and expected outcomes are different than in "traditional'' CFD applications, chemical reactors require special attention to the treatment of chemical reactions, and heat and mass transfer. Here we provide an overview of the...
conference paper 2006
document
Turunen-Saaresti, T. (author), Tang, J. (author), Larjola, J. (author)
Polynomial functions are generated to describe real gas properties in computational fluid dynamics (CFD). Two-variable relative least square fitting is applied. In this way the real gas model can be generated fast and easily and the computational time requested is small and precision of the function can be easily adjusted. In this paper this...
conference paper 2006
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