有嚢まき網の漁具特性に関する模型実験

抄録

The purpose of this study is to develop a net design for the stern fishing system of surrounding net using a lampara net. First, experiments were carried out using the model lampara net on the sinking motion under static water condition, and on the closing characteristics of the opening area on the lead line and side shape of the model net under the flow of water.
The sinking speed of the model net was different according to the measuring point on the lead line. The depth of the lead line gradually became shallow as the flow velocity increased. The closed time of the opening area on the lead line was different according to the given flow velocity. When the model net moved about the same length of the float line, the opening area on the lead line was almost closed.