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iFLY | INDOOR SKYDIVING 1 Copyright © 2018 iFLY The Science & Engineering of iFLY

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Page 1: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 1Copyright © 2018 iFLY

The Science & Engineering of iFLY

Page 2: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 2

Page 3: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 2

STEM is fun!

Page 4: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

This is a Closed Loop Vertical Wind Tunnel.

350 HPfanX2

iFLY | INDOOR SKYDIVING 4

350 HPfanX2

Page 5: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 5

Page 6: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

How Does All This Work?Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop.

The airflow is narrowed below the flying chamber to speed and smooth the flow for maximum enjoyment.

Page 7: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

Wind tunnel testing

iFLY | INDOOR SKYDIVING 7

Page 8: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 8

Page 9: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

Fluids

vs.

Solids

iFLY | INDOOR SKYDIVING 9

Page 10: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

Airis afluid.

iFLY | INDOOR SKYDIVING 10

By Georgepehli (Own work) [CCBY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via WikimediaCommons

Page 11: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

Fluids exert pressure forces

Static airpressure

Dynamic airpressure

By yeowatzup from Katlenburg-Lindau, Germany (Sleeping Cat, Commonwealth, Singapore) CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

iFLY | INDOOR SKYDIVING 11

Page 12: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 13

Page 13: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

What forces are acting upon a sky diver in the tunnel?

gravity

drag force

iFLY | INDOOR SKYDIVING 13

Page 14: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

gravitypulling you down

force of airpushing you up

force of airpushing you up

gravitypulling you down

iFLY | INDOOR SKYDIVING 14

Page 15: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

force of air force of air

gravity gravity

When drag force = gravity, you reach terminal velocity.

iFLY | INDOOR SKYDIVING 15

Page 16: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 14

Page 17: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 17

A smaller frontal area

increases your velocity.

Page 18: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 18

Page 19: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

iFLY | INDOOR SKYDIVING 19

A larger frontal area decreases

your velocity.

Page 20: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

How fastdoes the air have

to move

iFLY | INDOOR SKYDIVING 20

to support your weight ?

Engineers and scientistsuse mathematicsto quantify physicalprinciples…because…

wewanttobeabletopredictwhat’s going tohappen.

Page 21: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

…with a Pitot Static Tube.

Can you find them in our wind tunnel?

How do we know the air speed? …we measure it…

iFLY | INDOOR SKYDIVING 21

Page 22: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

Now lets go flying!

iFLY | INDOOR SKYDIVING 22

Page 23: The Science & Engineering of iFLY...How Does All This Work? Four fans located in the optimal position for flow quality drive the air around a simple and efficient loop. The airflow

The Science & Engineering of iFLY

iFLY | INDOOR SKYDIVING 29Copyright © 2018 iFLY


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