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Description: Flow pattern maps for microchannels.

Reference: Tibiriça, C. B.; Rocha, D. M. ; Sueth JR., I. L. S. ; Bochio, G. ; Shimizu, G. K. K. ; Barbosa, M. C. ; Ferreira, S. S. . A complete set of simple and optimized correlations for microchannel flow boiling and two-phase flow applications. APPLIED THERMAL ENGINEERING, v. 126, p. 774-795, 2017.

Equations/Symbols:

Calculate:
Insert saturation temperature (Tsat), mass velocity (G), heat flux (q), Inlet vapor quality (x_in) and tube diameter (D) and press 'Calculate'.

Fluid: R134a Water T_sat (K): G (kg/s/m²): q (W/m²): x_in (-): D (m):

Fluid properties: rhol=1,191.95 kg/m3 cpl=1,440.13 J/(kg.K) mul=0.000185310 Pa.s kl=0.0814 W/(m.K) hlv=174,184.70 J/kg σ=0.0075 N/m	Dimensionless numbers Rel=2,158.55 Prl=3.28 Lal=522,512.16 Bo=0.00028705	Flow pattern transition vapor quality