chap83 - ± Heat flux lines should be parallel to insulated...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Modeling Considerations ± FE mesh (element types, sizes, etc.) is usually dictated by the stress analysis rather than the thermal analysis. ± Steady-state analysis: To avoid a singular conductivity matrix K T , ² at least one nodal temperature, or , ² a conduction or radiation boundary condition must be prescribed. ± Can make use of symmetry: ² No heat flow across a plane of symmetry. Such a plane becomes an insulated boundary .
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Checking the Results ± Temperature contours should be parallel to boundaries of constant temperature and normal to planes of symmetry.
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ± Heat flux lines should be parallel to insulated boundaries and planes of symmetry ± Above, the horizontal center line is a line of geometric symmetry but not thermal symmetry. 3 Interelement Continuity ± Temperatures are continuous through the elements, like displacements. ± Fluxes are not continuous, like stresses. ± Significant interelement discontinuity in fluxes (or in stresses) implies the mesh should be refined. ± In a good mesh each element spans about the same number of flux contours....
View Full Document

This note was uploaded on 06/06/2011 for the course EAS 4240 taught by Professor Peterifju during the Spring '08 term at University of Florida.

Page1 / 3

chap83 - ± Heat flux lines should be parallel to insulated...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online