Log in

Login to your account

Username *
Password *
Remember Me

Create an account

Fields marked with an asterisk (*) are required.
Name *
Username *
Password *
Verify password *
Email *
Verify email *
Captcha *
Reload Captcha
4 minutes reading time (746 words)

The Fluid Mechanics of an African Safari

Serengeti National Park Sign

Last week I got back after three weeks in East Africa – my first international travel since the COVID-19 pandemic started. I had some out-of-the-ordinary encounters with fluid flow. So, I decided this month to depart from my usual tech-centric format and have some fun. Here are some brief topics I will discuss and a few photos I took…

  • Open Channel Flow – The Great Migration of wildebeest across the Mara River
  • Buoyancy Effects – A hot air balloon trip over the Serengeti
  • High Speed Propulsion – A cheetah catches a Thomson gazelle
  • Cooling Water Spray Systems – Elephants and zebras cooling off in a watering hole
  • Mass Transfer – Newborn lion cubs being transported by their lioness mother
  • Geothermal Engineering – A gorilla family near some volcanoes


Open Channel Flow – The Great Migration of wildebeest across the Mara River

Location – Tanzania, north Serengeti National Park

We saw five wildebeest crossings. We saw crocodiles. But we did not see crocodiles catch any poor wildebeest. The Great Migration happens in July-September when over a million wildebeest cross the Mara River in search of better grazing areas.

These wildebeest decided it was time to go across
The zebra decided to have a huddle in the middle of the river while the wildebeest continued on
A momma and baby hippo move away from the annoying wildebeest
A large herd crossing the Mara…

Buoyancy Effects – A hot air balloon trip over the Serengeti

Location – Tanzania, north Serengeti National Park

We took an incredible one-hour hot air balloon trip at dawn over the Serengeti.

Our balloon in flight
Nearby balloon floating over a wildebeest herd
A wildebeest herd from our balloon
A zebra herd from our balloon

High Speed Propulsion – A cheetah catches a Thomson gazelle

Location – Tanzania, eastern plains of Serengeti National Park

We came across this cheetah just after she had successfully hunted a Thomson gazelle. The gazelle was still intact. We watched her for 90 minutes until she had eaten enough – at which point she just walked away. Then the scavengers showed up (vultures and hyena) which we watched for another 90 minutes. At the end of the 3 hours the only thing remaining of the "tommy" was a skull and horns. The hyenas ate all the bones.

Cheetah with a fresh kill
Cheetah needs a napkin after dining on a gazelle
Cheetah checking to make sure no hyenas are coming to steal her lunch

Cooling Water Spray Systems – Elephants and zebras cooling off in a watering hole

Location – Tanzania, Tarangire National Park

Elephant family making a splash
Zebras and submergence

Mass Transfer – Newborn lion cubs being transported by their lioness mother

Location – Tanzania, eastern plains of Serengeti National Park

This lioness had just given birth and was transporting her cubs to a rocky outcropping

Geothermal Engineering – A gorilla family near some volcanoes

Location – Rwanda, Volcanoes National Park (first national park in all of Africa)

Good thing we chose the "short hike" to see the gorillas as it ended up being 6 miles (10 km) through a jungle in the rain forest with a vertical rise of about 800 ft (250 m)!

Volcanoes National Park Entrance
Female gorilla in a movie star pose…
The silverback gorilla leader of the Kwitonda family – his name is Karevuro
Gorilla family of resting adults and a nine-month-old baby playing in a tree - the silverback leader Karevuro is relaxing at the left
Young gorillas hanging out
Quick Guide to Custom Output
Get the Most Out of AFT's Fluid Property Viewers
 

Comments

No comments made yet. Be the first to submit a comment
Guest
Thursday, 21 October 2021

By accepting you will be accessing a service provided by a third-party external to https://www.aft.com/

© 2021 Applied Flow Technology