@article{oai:ynu.repo.nii.ac.jp:00003837,
 author = {Kurokawa, Junichi and Takagi, Akira and Uchida, Toshiyuki and Kusa, Takashi},
 issue = {253},
 journal = {Bulletin of JSME},
 month = {Jul},
 note = {application/pdf, The steady flow characteristics around a swing-type valve plate installed in a rectangular duct are studied theoretically and experimentally in order to determine the fluid force acting on a swing-type check valve and the side-gap-leakage effects. The results show that the side-gap leakage has dominant influence upon the fluid force characteristics, which can be well predicted by a small modification of the conventional two-dimensional potential flow theory. For the case of a large side gap, the pressure over the valve plate becomes nearly uniform and is equal to the upstream one. And that the fluid force is expressed as a function of only the velocity ratio of the jet to the upstream, if the side-gap-leakage is less than the mainflow volume. It is pointed out that the separation zone at the back of a valve plate is recovered very rapidly due to momentum transfer effects of side-gap-leakage, and that the outlet flow from a valve plate is not contracted with its width nearly equal to the valve opening one. The experimental formulae of moment coefficient are also presented.},
 pages = {2062--2069},
 title = {Flow Characteristics around a Valve Plate Installed in a Duct : 2nd Report, Swing Type Valve Plate Installed in a Chamber},
 volume = {29},
 year = {1986}
}