Fig. 1 Qualitative behavior of critical mass flux
Fig. 2 Schematic of the rupture pipe and target plate
Fig. 3 Mach number contour of steady-state free jet
Fig. 4 Snapshot of pressure contour (impinging jet)
Fig. 5 Snapshot of Mach number contour (impinging jet)
Fig. 6 Time-averaged impinging force
Fig. 7 Normalized amplitude(RMS) of impinging force
Fig. 8 Variation of the jet impingement load with respect to time
Fig. 9 FFT results (load amplitude vs. frequency)
Fig. 10 Dominant frequency of the jet impingement load with respect to the axial distance of the target plate
Fig. 11 Time-averaged impinging pressure
Fig. 12 Normalized amplitude(RMS) of impinging pressure
Fig. 13 Normalized amplitude(RMS) of impinging pressure
Fig. 14 Variation of the impinging pressure with respect to time (R/D=0)
Fig. 15 FFT results (pressure amplitude vs. frequency, R/D=0)
Fig. 16 Variation of the impinging pressure with respect to time (R/D=1)
Fig. 17 FFT results (pressure amplitude vs. frequency, R/D=1)
Table 1 Dominant frequency of the jet impingement load
Table 2 Dominant frequency of impinging pressure
참고문헌
- ANS, 1998, "Design Basis for Protection of Light Water Nuclear Power Plants against the Effects of Postulated Pipe Rupture," ANSI/ANS-58.2-1988(W1998).
- USNRC, 2007, "Determination of Rupture Locations and Dynamics Effects Associated with the Postulated Rupture of Piping(Rev.2)," U.S. Nuclear Regulatory Commission, Washington, DC, NUREG-0800.
- Wallis, G., 2004, "The ANSI/ANS Standard 58.2-1988: Two Phase Jet Model".
- Ransom., V., 2004, "Comments on GSI-191 Models for Debris Generation".
- Oh, S., Choi, D. K., Kim, W. T., Chang, Y. and Choi, C., 2017, "Numerical Analysis on Feedback Mechanism of Supersonic Impinging Jet using LES," Trans. of the KPVP, Vol. 13, No. 2, pp. 51-59.
- Johnson, R. W., 1998, "The Handbook of Fluid Dynamics," Springer, pp.17-32-17-33.
- ANSYS, Inc., 2010, "ANSYS Fluent User Guide".