Skip main navigation

New offer! Get 30% off your first two months of Unlimited. Subscribe for just £35.99 £24.99. New subscribers only. T&Cs apply.

Find out more

An article on reynolds numbers and efficiency

Size and shape underwater
stuff

In the video we learned that animal shape in water is determined by the competing forces of inertia and drag. However these forces can also determine how efficient an animal is as it moves through waters.

The article linked below the authors discus this in more detail. They use the reynolds numbers of animals to come up with a metric called the energy-consumption coefficient. Generally they find that most animals are as efficient as they can be with the exception of one animal – the jellyfsh!

Jellyfish it turns out are much more efficient that predicted. Read the article below for more information!

Jellyfish are the most energy efficient swimmers

This article is from the free online

Life Below Water: Conservation, Current Issues, Possible Solutions

Created by
FutureLearn - Learning For Life

Reach your personal and professional goals

Unlock access to hundreds of expert online courses and degrees from top universities and educators to gain accredited qualifications and professional CV-building certificates.

Join over 18 million learners to launch, switch or build upon your career, all at your own pace, across a wide range of topic areas.

Start Learning now