What criterion should we use for Unsteady Boundary Layer Flow of a Casson Fluid Due to an Impulsively Started Moving Flat Plate?

In laminar boundary layer calculations, the wall shear stress parameter, v(x,0), is commonly used as the convergence criterion. This is probably because in boundary layer calculations, it is found...

21 September 2019 9,697 1 View

How to relate relaxation time values obtained from different equation?

I tried to fit the frequency vs Dielectric constant and f vs Dielectric Loss graph with HN equation. I got different Tau (relaxation time) values from the fittings of both graphs. What I have to...

12 January 2021 8,467 6 View

How to segregate electrode-dielectric and dielctric-dielctric interface polarization after Capacitance VS Freq. measurement using impedance analyzer?

After measuring the capacitance vs frequency for my MIM capacitor consisting of alternate layers of TiO2 &Al2O3 , there is a rise in capacitance value of ~ 20-160 nF at 100 hz, starting to...

17 December 2020 7,786 3 View

Can I use 'relaxation' constants on the linear system matrix to fit a non-linear model?

I have a model that consist of two ODEs and one PDE which are all coupled and non-linear. When I linearize the system around the steady state and simulate the system with initial values that are...

23 November 2020 6,648 3 View

A problem in simulation of non-newtonian flow by MRT-LBM?

22 November 2020 4,778 2 View

Annealing in NVT or NPT?

Dear all I want to simulate a system containing polyelectrolytic and water. I would like to do annealing for more relaxation. But, I dont know if annealing process is better to do in NVT or...

30 October 2020 745 1 View

CG relaxation with B3LYP in VASP?

I am trying to CG relax a amorphous GeSe system with B3LYP and single K-point (gamma). Even though I have a 250 atom model, the calculations seem to be extremely slow. Is there a way to speed up...

23 August 2020 8,848 4 View

How to find gR(t)=normalized shear modulus?

I want to use relaxation test data in abaqus. Abaqus wanted terms like gR(t)=normalized shear modulus at time (t) and long term normalized shear modulus to find prony series. can you help me in...

21 August 2020 317 1 View

Can anyone explain the dynamic relaxation in DEM??

DEM is based on the dynamic relaxation. But we use this dynamic relaxation in FEM which is based on discretizing the continuum domain and assign the lump masses at the nodes. But, we don't do this...

02 August 2020 5,012 1 View

Why does the equation of balance of Equilibrated force (equation containing voids) not include any thermal relaxation parameter?

In most mathematical problems considering voids, why does the equation of balance of Equilibrated force not include any thermal relaxation parameter considering Green-Lindsay theory or any higher...

20 July 2020 5,481 6 View

Can you use the FreeRate model for heterogeneity across sites in MrBayes?

Using IQTREE I received the most optimum models for my data to analyse phylogenetic tree-reconstruction. IQTREE is able to use, aside from the Gamma distribution for heterogeneity across sites...

31 May 2020 2,352 4 View