The design of aquaculture systems requires an understanding of the drag forces on cultivated kelp. This study measured the drag on line segments of cultivated Saccharina latissima in a towing tank. The drag on segments of farm line with full kelp bundles and with stipes alone (fronds removed) was measured at tow speeds of 0.10 to 0.50 m/s. The drag on individual fronds cut from the line was also measured. Video images were collected to evaluate the plant reconfiguration. Both kelp blades and stipes contributed to the total drag force on the line bundle. Within the velocity range of our experiments, the kelp blades were essentially horizontal. However, the pronation of kelp stipes increased as flow velocity increased. The reconfiguration of kelp stipes was observed to decrease the vertical extent of the kelp bundle. Due to this reconfiguration, the measured force, $F$, increased with velocity, $U$, at a rate slower than quadratic, and was consistent with scaling laws derived for reconfiguration. Specifically, $F\sim U^{\alpha }$ with $\alpha =1.35\pm 0.17$.

水产养殖系统的设计需要了解养殖海带上的阻力。这项研究测量了栽培Saccharina latissima的线段上的阻力在拖船上。在拖带速度为0.10至0.50 m / s的情况下，测量具有完整海带束和仅带刺叶（去除叶茎）的农场线段上的阻力。还测量了从该线切下的各个叶片上的阻力。收集视频图像以评估工厂的重新配置。海带刀片和柄都对线束上的总拖曳力有所贡献。在我们实验的速度范围内，海带刀片基本上是水平的。然而，海带柄的内旋随着流速的增加而增加。观察到海带柄的重新配置降低了海带束的垂直范围。由于进行了这种重新配置，因此测得的力$F$，随着速度增加， $ü$，其速率比平方慢，并且与为重新配置而得出的缩放定律一致。具体来说，$F〜{ü}^{\alpha }$ 和 $\alpha =1.35\pm 0.17$。