Open Access. Powered by Scholars. Published by Universities.®
Strouhal number; swimming; dolphin; cetacean; odontocete; Tursiops; Pseudorca; Orcinus; Lagenorhynchus; Globicephala; Stenella delphinapterus
Articles 1 - 1 of 1
Full-Text Articles in Entire DC Network
Strouhal Numbers And Optimization Of Swimming By Odontocete Cetaceans, J J. Rohr, Frank E. Fish
Strouhal Numbers And Optimization Of Swimming By Odontocete Cetaceans, J J. Rohr, Frank E. Fish
Frank E. Fish
Swimming efficiencies of fish and cetaceans have been related to a certain synchrony between stroke cycle frequency, peak-to-peak tail/fluke amplitude and mean swimming speed. These kinematic parameters form a non-dimensional wake parameter, referred to as a Stroulial number, which for the range between 0.20 and 0.40 has been associated with enhanced swimming efficiency for fish and cetaceans. Yet to date there has been no direct experimental substantiation of what Strouhal numbers are preferred by swimming cetaceans. To address this lack of data, a total of 248 Stroubal numbers were calculated for the captive odontocete cetaceans Tursiops truncatus, Pseudorca crassidens, Orcinus …