@article{(Open Science Index):https://publications.waset.org/pdf/10010869, title = {Comparison of Two-Phase Critical Flow Models for Estimation of Leak Flow Rate through Cracks}, author = {Tadashi Watanabe and Jinya Katsuyama and Akihiro Mano}, country = {}, institution = {}, abstract = {The estimation of leak flow rates through narrow cracks in structures is of importance for nuclear reactor safety, since the leak flow could be detected before occurrence of loss-of-coolant accidents. The two-phase critical leak flow rates are calculated using the system analysis code, and two representative non-homogeneous critical flow models, Henry-Fauske model and Ransom-Trapp model, are compared. The pressure decrease and vapor generation in the crack, and the leak flow rates are found to be larger for the Henry-Fauske model. It is shown that the leak flow rates are not affected by the structural temperature, but affected largely by the roughness of crack surface. }, journal = {International Journal of Nuclear and Quantum Engineering}, volume = {13}, number = {11}, year = {2019}, pages = {516 - 519}, ee = {https://publications.waset.org/pdf/10010869}, url = {https://publications.waset.org/vol/155}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 155, 2019}, }