Back to tools

Description: Flow pattern maps for horizontal diabatic two-phase flow

Reference: Wojtan, L., Ursenbacher, T., Thome, J. R. Investigation of flow boiling in horizontal tubes: Part I - A new diabatic two-phase flow pattern map, International Journal of Heat and Mass Transfer 48 2955-2969, (2005).

Symbols:

Calculate:
Insert saturation temperature (Tsat), mass velocity (G), heat flux (q), tube diameter (D) and press 'Calculate'.
Fluid: Tsat (K): G (kg/s/m2): q (W/m2): D (m):
Fluid properties:
rhol=1,244.20 kg/m3
cpl=1,375.09 J/(kg.K)
mul=0.000220407 Pa.s
kl=0.0880 W/(m.K)
hlv=186,779.39 J/kg
σ=0.0094 N/m
Dimensionless numbers
Wel=106.44
Frl=0.43

Heat Transfer Research Group - HTRG
University of Sao Paulo - USP