Incropera_Chap07_Summary_6thEd

Incropera_Chap07_Summary_6thEd - MAE 412 Chapter Summary 7...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Page 1 of 4 MAE 412 th Ed) Cautions: 1. Always keep in mind the difference between local and average correlations. 2. The definition of the Reynolds No. varies with different applications, as does the critical value for the onset of turbulence. 3. External-flow convective correlations generally use T f , the film temperature; internal-flow convective correlations use T m,avg , the avg mean temp of the fluid. 4. Sometimes a problem can’t be started until an initial guess is made about the temperature to use for fluid properties. In that case, select an arbitrary temperature for use in looking up properties, but select one that is reasonable for the problem. The results of the ensuing calculations will allow you to make a better estimate of the fluid properties, and another iteration can then be made on the problem. 5. Sometimes it helps to initially assume a wall temperature, make calculations on that basis, then use the results to refine your heat transfer calculations with
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

Incropera_Chap07_Summary_6thEd - MAE 412 Chapter Summary 7...

This preview shows document pages 1 - 2. Sign up to view the full document.

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