Science and Technology of Nuclear Installations

Research Article

CFD Turbulence Study of PWR Spacer-Grids in a Rod Bundle

Figure 16

Mean and RMS velocity components at elevation for split spacer-grid type. The horizontal axis represents normalized distance from the center of the channel to the wall, while the vertical represents normalized velocities or RMS fluctuations.
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(a) Mean velocities at 1
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(b) Mean velocities at 4
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(c) Mean velocities at 10
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(d) RMS fluc. vel. at 10
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(e) RMS fluc. vel.s at 4
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(f) RMS fluc. vel. at 10
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(g) Mean velocities at 1
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(h) Mean velocities at 4
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(i) Mean velocities at 10
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(j) RMS fluc. vel. at 1
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(k) RMS fluc. vel. at 4
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(l) RMS fluc. vel. at 10