Validation of the Subchannel Code SUBCHANFLOW Using the NUPEC PWR Tests (PSBT)

Table 7

Empirical correlations used for the bundle tests.

Process	Correlation	Reference
Single-phase lateral mixing	Constant coefficient 0.06	[13]
Two-phase lateral mixing	No mass transport, Beus multiplier	[14, 15]
Pressure-driven lateral flow	Constant resistance pressure loss coefficient 0.5	[5]
	Constant axial flow pressure loss coefficient
Effect of spacers	Mixing vane: 1.0	[16]
	Nonmixing vane 0.7
	Simple: 0.4