Research Article

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

Table 5

Geometry of test bundles for void and DNB measurements.

Case nameB5B6B7A0A2A3A4, A11, A13A8, A12

Number of rods2525252525362525
Guide tubes00100001
Rod pitch (mm)12.612.612.612.612.612.612.612.6
Rod dia. (mm)9.59.59.59.59.59.59.59.5
Guide tube dia. (mm)12.2412.24
Heated length (mm)36583658365836583658365836583658
Assembly inner width (mm)64.964.964.964.964.977.564.964.9
Power shapeUniform Cosine Cosine Uniform Uniform Uniform Cosine Cosine
Mixing vane spacers77757777
Nonmixing vane spacers22222222
Simple spacers88868888