Does Mathematics have the strength to reflect actuality?

Mathematics is portrayed as the queen of science. Being a student of mathematics, there was a time when I used to take pride in such a claim. I was taught that mathematics holds the magic key to...

09 October 2013 4,456 47 View

Where do we stand really in terms of research publication and impact factors?

Being a researcher is it publication or impact factors? I know sensible people would argue one should always concentrate for good work/publication and not think for those impact factors because...

09 October 2013 3,558 30 View

Vorticity and potential vorticity what is the best way to understand the difference?

With linear shallow water theory (LSW) we find del(omega)/del(t) = 0, that is vorticity is preserved, whereas if we consider non-linear shallow water theory (NLSW) it is the potential vorticity...

09 October 2013 6,383 3 View

I would like to know about wavelet transform. There are many books but can anyone tell me about an introductory book on this?

I am really unaware about wavelet transforms and rather curious to know their relevance and advantage over Fourier and Laplace transform. What edge do the wavelet transforms provide over the well...

08 September 2013 6,776 14 View

Analytical skill of solving problems of mechanics is gradually decreasing among students even with the teachers; is this a global trend?

With the advent of the most sophisticated computers and software, I find over the years that the appetite of solving problems analytically is virtually non-existence among students both with the...

07 August 2013 3,533 9 View

Is shallow water approximation valid for the large water depths if the wavelengths are sufficiently long?

The development of shallow water equations are seen to be nonlinear at the first step of approximation with the requirement of the parameter epsilon = (n^2)/(m^2), to be sufficiently small, where...

06 July 2013 1,989 11 View

Can anyone tell me the best way to teach Eulerian description of fluid motion & Eulerian derivative to my PG students with a 3 yrs Math(Major) at UG?

I face problem while make my M.Sc students understand about Eulerian description of motion in fluid and Eulerian derivative or convective derivative. I wish to know how can I approach to these two...

06 July 2013 9,014 8 View

Convergence of an infinite series, each term of which is a product of two infinite cgt series. Product taken needs not be of consecutive terms.

Wish to know the convergence of the double series {anbn}, where {an} and {bn} are both convergence series. The point is the product shown by anbn needs not to be termwise. There may be other ways...

02 March 2013 3,456 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View