When defining the fluid flow conditions in the circular tube, calculate the Nusselt number (Nu) and the friction factor (f).
Number | Condition |
---|---|
1 | Laminate |
2 | Turbulent, ReD≤2⋅104 |
3 | Turbulent, ReD≥2⋅104 |
4 | Turbulent, 3000≤ReD≤5⋅106 |
Number | Condition |
---|---|
1 | Laminar, uniform Ts |
2 | Laminar, qs" uniform |
3 | Laminar, combined input, uniform Ts, Pr≥5, properties evaluated at Tm |
4 | Laminar, combined input, uniform qs", GzD=L/DReDPr≥100, properties evaluated at Tm |
5 | Turbulent, L/D≥10, 0.6≤Pr≤160, ReD≥104, TS>TM, properties evaluated at Tm |
6 | Turbulent, L/D≥10, 0.6≤Pr≤160, ReD≥104, TS<TM, properties evaluated at Tm |
7 | Turbulent, L/D≥10, 0.6≤Pr≤16700, ReD≥104, properties evaluated at Tm |
8 | Turbulent, L/D≥10, 0.6≤Pr≤2000, 3000≤ReD≤5⋅106, properties evaluated at Tm |
All correlations are evaluated with the fully developed velocity profile, with the exception of the input combines