How to modify predefined model equations in COMSOL?

I want to modify Navier-Stokes equation in the module "Laminar Flow" in COMSOL. I wish to incorporate porosity factor into the equation. Is it possible to modfy it or add another differential...

07 August 2017 7,648 12 View

How to segregate micro-nano sized particles from kerosene without agglomeration?

I have performed some experiments and collected some debris (micro/nano sized particles) dipped in kerosene. I want to separate the particles from kerosene for further characterization in SEM and...

05 June 2016 9,878 1 View

How to measure surface roughness of cut-off length (20-30 microns)?

I have traced profile of a feature using contact probe surface roughness measurement device. The problem is that the software can allow sampling length of a minimum of 800 microns (0.8 mm) to...

04 May 2016 7,316 2 View

How to relate material removal rate due to a single spark (micro EDM) with mesh velocity (simulation)?

I am trying to simulate the material removal phenomena in micro EDM. I am finding hard to get any literature that relates the material removal rate (m^3/s) with mesh velocity (m/s). Is there any...

01 January 1970 8,340 11 View

Does COMSOL support imported meshed geometry?

I am trying to define mesh type and size based on physics associated with my problem. However, whenever I use 'user defined mesh' to refine mesh at important boundaries/domains, the mesh quality...

01 January 1970 4,013 5 View

What is the breakdown strength for Servo Spark 2 EDM oil?

I wanted to know the dielectric breakdown strength of Servo Spark 2 EDM oil. I could not find any literature on that.

01 January 1970 9,455 3 View

Does the particles that stick to surface alters the shape of the geometry in COMSOL?

I am trying to couple Electric current and Particle tracing in COMSOL. I wanted to know that if a particle sticks to a surface, will it alter the geometry of the surface and give me the modified...

01 January 1970 3,545 7 View

How to install CFDEM coupling in OpenFOAM?

Is it possible to install CFDEM coupling in Windows or a LINUX OS is necessary? It would be very helpful if someone can guide me with the procedure and also some basic tutorials/literature on...

01 January 1970 7,895 0 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

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View