Zhou Hongyang

6 Questions 3 Answers 0 Followers

Questions related from Zhou Hongyang

How can I set a continues current in Z-direction in 2D-axisymmetr?

Hello everyone, I set the gas insulated line(GIL) model in Magnetic Fields in 2D-axisymmetr. I wish to simulated the magnetic flux density in GIL(as Figure1 shown). And the alternating...

08 August 2016 6,842 1 View

How can I set the "if condition" in COMSOL PDE boundary?

I am using the PDE in COMSOL 4.4. And I need to set the Dirichlet boundary condition on a face. But the boundary condition only would be used under certain conditions. (eg. only A>0, the...

03 March 2015 1,848 4 View

How can I define the Neumann-condition in COMSOL 4.4 ?

I need to assign the Neumann-condition on boundary. As Fig.1 shown, what do the q and g mean? If I want to assign that there is no diffusion of ions into or out of the boundary, and the...

01 January 2015 483 8 View

How can l set the stop condition in transient solver of comsol?

The stop condition is the rate of electric potential change

11 November 2014 1,517 2 View

Can someone help with a comsol error?

Undefined value found in the stiffness matrix: Stack trace: at solvermodel.cpp, row 1837, (Undefined value found in the stiffness matrix. There are 35741 equations giving mode1.es.sigs in...

04 April 2014 6,934 3 View

Can anyone help with this comsol error: Undefined value found in the stiffness matrix?

Stack trace: at solvermodel.cpp, row 1837, (Undefined value found in the stiffness matrix. There are 35741 equations giving mode1.es.sigs in the matrix rows for the variable T at coordinates:...

04 April 2014 4,129 4 View