鰤大謀・落し網の模型實験的研究

III.落し網

抄録

By the same method as used in the previous reports, the deformation of amber-fish trap nets under various currents was examined with two models, of which the original nets are as shown in Figs. 1 and 2.
The photographs reproduced in Figs. 4 and 5 show the forms of the two nets respectively, and in each, each column, those under the currents in several directions prevailing in each fishing ground (Fig. 3), while from top to bottom in each column, at the current velocities of 0, 1/4, 1/2 and 1 mile/hour respectively.