-
Filter by Topic
Release
Popular Topics
- List all discussions
Failed to evaluate variable Jacobian
|
Thread index | Previous thread | Next thread | Start a new discussion |
January 18, 2013 8:08am UTC
Failed to evaluate variable Jacobian
Hi
I simulate the rib waveguide with the sio2 substrate and material of the core Er:Ta2o5
i define the lambda=1550nm in global definition>parameters, and in the step 1:frequency domain:c_const/lambda
in the electromagnetic wave field i define 2 port for the core(Er:Ta2o5):
port 1:port type :rectangular and wave excitation is on
port 2: port type :rectangular and wave excitation is off
mode type is TE,mode number :10
when i want to simulate,i am getting the following error:
Failed to evaluate variable Jacobian.
- Variable: mod1.emw.tE0modex_2
- Geometry: 1
- Boundary: 7
do you know how to fix this problem?
Thanks in advance for the comments
Michael
Reply | Reply with Quote | Send private message | Report Abuse
January 18, 2013 1:58pm UTC in response to Michel Roy
Re: Failed to evaluate variable Jacobian
try with a different name for lambda, such as lambda_1
Reply | Reply with Quote | Send private message | Report Abuse
January 18, 2013 5:40pm UTC in response to Samuele Lilliu
Re: Failed to evaluate variable Jacobian
Hi Samuele
I do it but it does'nt worked. do you have other suggestion?
Thanks in advance
Reply | Reply with Quote | Send private message | Report Abuse
January 18, 2013 7:55pm UTC in response to Michel Roy
Re: Failed to evaluate variable Jacobian
Most likely your problem is with boundary condition at boundary 7. It's hard to tell how to fix it without knowing what boundary 7 is.
Reply | Reply with Quote | Send private message | Report Abuse
January 19, 2013 1:19pm UTC in response to Alexander Kuznetsov
Re: Failed to evaluate variable Jacobian
Hi Alexander
Thanks for your response
I send you the schematic file and marked the 7 boundary.
Thanks in advance
Reply | Reply with Quote | Send private message | Report Abuse
January 21, 2013 5:42pm UTC in response to Michel Roy
Re: Failed to evaluate variable Jacobian
What's the BC on boundary 7?
Reply | Reply with Quote | Send private message | Report Abuse
January 21, 2013 6:16pm UTC in response to Alexander Kuznetsov
Re: Failed to evaluate variable Jacobian
Hi Alexander
sorry, what is the BC ?
Reply | Reply with Quote | Send private message | Report Abuse
January 21, 2013 7:27pm UTC in response to Michel Roy
Re: Failed to evaluate variable Jacobian
Hi
BC = Boundary Condition in this case value set by a "boundary node" in your physics tree
--
Good luck
Ivar
Reply | Reply with Quote | Send private message | Report Abuse
Rules and guidelines

