Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Free convection

Status
Not open for further replies.
googool

googool

Mechanical
Mar 3, 2005
9
Hello
How can i calculate the average Nusslet number for free convection over rectangular duct
thx
 
Replies continue below

Recommended for you

Sort by date Sort by votes
You need to calculate the vertical sides seperate from the top & bottom surfaces. THen add up the conductivities using formulas for parallel resistances. "Advanced Heat Transfer" by Rosenhow & Choi has simplified formulas for upward facing, downward facing and verticla surfaces in contact with air.
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

SalvoR
  • Locked
  • Question
Forced/Thermal Convection
Replies
3
Views
341
georgeverghese
georgeverghese
S
  • Locked
  • Question
Water brine solution for freezing purpuses 1
Replies
10
Views
8K
Salah 1
S
ringo9857
  • Locked
  • Question
A transient heat convection and thermal expansion problem 1
Replies
8
Views
267
goutam_freelance
goutam_freelance
ESTinker
  • Locked
  • Question
Ice block with uniform size in a chest freezer 1
Replies
12
Views
684
1503-44
1503-44
m.piron
  • Locked
  • Question
2D convection model
Replies
1
Views
146
hendersdc
hendersdc

Part and Inventory Search

Sponsor

Back
Top Bottom