Default Wall Type Data

The following table lists the default wall types and their shape factor values:

Wall Description	Shape Factor \([\unit{\unitless}]\)
Horizontal cylinders	1.016
Longer vertical cylinders	1.235
Vertical plates	1.394
Horizontal plate facing up, warmer than air	1.79
Horizontal plate facing down, warmer than air	0.89
Horizontal plate facing up, cooler than air	0.89
Horizontal plate facing down, cooler than air	1.79

Note

Shape factors are used to account for the effect of surface orientation on convective heat transfer.

See also

Wall Heat Loss Calculator