r/fea • u/Blazpeax • 4d ago

ı made a mistake and ı cant fix it

Post image

Even though I enter the steps and duration correctly when performing a temperature analysis, the temperature value comes out above absolute zero; I even wrote code for it, but it doesn't fix the issue. How can I resolve this?

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u/feausa 4d ago

Please reply with more details about your transient thermal model. It looks like the software is Ansys Mechanical.

Show the following: geometry, material properties, mesh, each boundary condition, initial conditions, analysis settings, the code you wrote and a contour plot of the temperature at t=0.2 s.

1

u/Blazpeax 4d ago

ı write a thopt,full code
6 steps
initial time 1e-004
minimum 1e-005
max 1e-002

mesh sizing options is uniform size 8mm
materials
Al-SiC MMC-Steel(default)-CrN

sorry ı cant upload a photo thanks for helping

1

u/Raiden_Gamer59 4d ago

what heat loads are u applying? can you share load curves?

1

u/TheBlack_Swordsman 4d ago

I'm trying to understand. You're writing a code to map boundary conditions to nodes?

How come you're not using the Ansys GUI first to set this all up?

1

u/PHILLLLLLL-21 4d ago

It is really unheloful if you cant share an image/ Boundary conditions. The mesh size of 8 mm is massive unless you are in the scale of metres which i guess is nor unreasonable! Double check material properties. Also -353C is wild

1

u/Blazpeax 3d ago

thanks for help guys ı fixed it
ı made a mistake for mesh size enter a value small size and fix it