Learning Forum

[chand1127]

My question is that,

                               However, as shown in graph 2 the maximum temperature increase at the second last peak.

At the initial peak position the temperature rise ( T/f ) is always less, but the temperature increases at the second peak position and then reduces the temperature at the third peak position, and I have no idea.

Please anybody help me to give some suggestions this and give a short explanation?

 

[chand1127]

[chand1127]

Anyone ask me if you have any doubts, or maybe you don't understand what I'm asking.

 

Thank you in advance.

[peteroznewman]

The question you ask is not going to be answered in this forum because it requires too much study to understand the physics of what you are trying to simulate. That is your research topic. I suggest you formulate simpler test cases that generate progressively deeper understanding of the physics until you can explain the result above. At the beginning, build some models to get results to problems where there is a known result to show that you have the ability to model correctly.

[chand1127]

Thank you, sir, when comparing the two results, I just changed the roughness of the peak from 0.54 μm to 1.06 μm. But I don't get a phenomenon for this, can anyone give an explanation is there any relation to other phenomena.

Thank you in advance.

[peteroznewman]

Another important aspect of modeling is performing a mesh refinement study. When you refine the mesh more and more, does the result converge on a value that can be considered the zero element size result? If you do this for each case, does the difference you saw with the initial mesh persist or does it disappear because it was an artifact of a coarse mesh and not a physical phenomenon?