Can I simulate a mosfet or a transistor using Comsol?

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How can I deal with the error of insufficient virtual memory?

05 June 2014 1,272 3 View

I have a function with four independent parameters (three parameters possitive real and one integer). I would like to obtain its optimum points.

I have a function which is very long and complicated. There are four independent parameters; three parameters are positive real and one remaining is positive Integer. I would like to test is the...

07 August 2013 9,817 2 View

I have a function with four independent parameters (three parameters are positive real and one integer). I would like to obtain its optimum points?

I have a function which is very long and complicated. There are four independent parameters; three parameters are positive real and one remaining is positive Integer. I would like to test is the...

07 August 2013 3,604 7 View

Is the pressure in a fully developed section of a pipe constant?

Considering a fully developed flow in an annular pipe. The velocity is only a function of radius. What a bout the pressure? I know the pressure is a function of pipe length. Is the pressure also a...

31 December 2012 790 44 View

Nusselt number for variable thermal conductivity.

As we know, the Nusselt number for an isothermal flat plate is written as Nu=h*x/k where h is the convective coefficient, x is length and k is the thermal conductivity of the fluid. In addition:...

31 December 2012 1,753 8 View

Why is the concentration of a binary fluid on the wall is maximum?

Consider an isothermal flat plate which a uniform binary fluid (for example salt water) with constant temperature of T_inf is flowing over it. Now assume that there are some slip mechanisms (for...

10 November 2012 1,994 2 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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 is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Is there any tutorial for comsol general projections?

Hi, im trying to make a projection in a 3d comsol model. I have a non uniforme chanel and my intention is to get the average tempreture in the y-z cross section and se the average tempreture...

02 March 2021 4,624 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Is it possible to do piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch?

How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...

02 March 2021 9,833 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View