Journal
AQUATIC BOTANY
Volume 144, Issue -, Pages 61-64Publisher
ELSEVIER
DOI: 10.1016/j.aquabot.2017.11.002
Keywords
Sargassum horneri; Drag; Drag coefficient Cd; Reynolds number Re
Categories
Funding
- Ministry of Education, Culture, Science and Sports of Japan (MEXT)
- Japan Society for Promotion of Science [22255010]
- Japanese Association of Marine Biology (JAMBIO) of Shimoda Marine Research Center, Tsukuba University
- Grants-in-Aid for Scientific Research [22255010] Funding Source: KAKEN
Ask authors/readers for more resources
Sargassum horneri (Turner) C. Agardh is used to restore, create, and recreate seaweed beds along the coastlines of East Asia. Drag produced by waves is a bulk force that can detach thalli from substrata during the early growth stages from substrata. In this study we measured drag forces on small S. humeri thalli (10-40 cm long). Unidirectional steady flow was controlled from 20 to 130 cm s(-1) in increments of 10 cm s(-1) in a recirculating water tank. Drag force on individuals ranged from similar to 0.3 N to similar to 3 N. Drag (F-drag) and water velocity (U) produced the following exponential empirical approximations: F-drag = 0.0168 x U-0.8925. The drag coefficient (Cd) was plotted as a function of Reynolds number (Re) as follows: Cd = 4744.7 x Re-0.93. Cd converged to 0.037 at Re of 10(5-6) suggesting that small thalli exhibit optimal morphological adaptations to withstand high current speeds.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available