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BoJing Zhu's blog

Can we use constitutive relation at micro/macro scale to molecules scale ?

Submitted by BoJing Zhu on

Hi, everyone

 

Now I meet a problem, wish can obtain you help.

 

Now i do some research on multi-compose particle materials (eg. pharmaceutical science  materials)___predict the compressibility, compactibility, flow properties and  breakage behavior.

as we know, the molecular scale at 0.1-70nm scale and crystal growth process at 0.1-100nm scale, can i use the constitutive relationship at micro(=~um)/macro to analyze the performance and structure at this scale.

 

thanks ! 

Comparison of intrapore velocities measured and simulated in the highly macro-porous biscayne aquifer

Submitted by BoJing Zhu on

Using the data from 3D hybrid lattice boltzmann code under parallel environments, some interesting simulated results are obtained by using Tecplot.

Tips:

After download the attached files, please change files name from *.ppt to *.wmv, then they  can be display normally by media player  

Can we creat a new kind of "boundary condition" to LBM for solve the mulpiple coupled fields problems

Submitted by BoJing Zhu on

As we know, lattice boltzmann method is one method to solve the fluid problems. and the primary work to use this method is give the corrected "boundary conditon"__pressure conditions and velocity conditions.

To general problems, the PC and VC for 2D/3D problems has been obtained by some scientists(eg.D3Q19,D2q9 ...model).

But to the lowest scale problems, the "force" fields is complexed and the traditional PC/VC is not suit for this kind of problems.

My opinion:

Numerical simulation results(part1): fracture of multiphase micro flow

Submitted by BoJing Zhu on

Numerical simulation results(part1): fracture  of multiphase micro flow

explanation:

For the 090*_consise.doc files, down load it and rename it to 090*_consise.avi, then you can open it with winplay

e.g 0903_consie.doc    0903_consise.avi

 

Nikolaos I.Ioakimidis _introduce hypersingular integral equations into 3D fracture mechanics

Submitted by BoJing Zhu on

N.I.Ioakimidis.1982.Application of finite-part integrals to the singular integral equations of crack problems in plane and three-dimensional elasticity. Acta Mechanica.45. 31-47.

N.I.Ioakimidis.1983. A new singular integral equation for the classical crack problem in plane and antiplane elasticity. Int J fracture. 21. 115-122

Dissertation:Hypersingular Integral Equation Method to 3D Crack in Fully Coupled Electromagnetothermoelastic Multiphase Composit

Submitted by BoJing Zhu on

Dissertation: Hypersingular Integral Equation Method to 3D Crack in Fully Coupled Electromagnetothermoelastic Multiphase Composites

Master: studies of hypersingular integral equation method to three-dimensional crack in bimaterials