Equation Boyko-Kruzhilin

The Boyko-Kruzhilin equation, equation 12.52, can be used to estimate the coefficient for annular flow. 

Check the Boyko-Kruzhilin equation Since the condensation path is from saturated vapor in (X = 1.0) to saturated liquid out (x = 0), use Equation (6.86d) for the bracketed term in Equation (6.86a) ... 

At sufficiently high vapor flow rates, vapor shear causes the condensate film to become turbulent and drain from the tube more rapidly. The Boyko-Kruzhilin equation (6.86a, b, c, d, e) was validated by condensing steam data. 

---

See also in sourсe #XX -- [ ]

---