SQUARE VORTEX Air Cannon Experiment!

Hey, welcome back to Kids Fun Science! Today's **homemade** experiment features a homemade Square Vortex Air Cannon, demonstrating principles of **physics** and **fluid mechanics**. This air cannon creates fascinating **vortex ring** formations, offering a clear visual of **fluid dynamics** in action. Observe the intriguing **vorticity** as the Air Zooka projects a visible form of air, making complex concepts easy to grasp. Question is will this launch a round or square vortex? SQUARE VORTEX Air Cannon Experiment! Air Cannon Shape Experiment: Square vs Round Vortex Made for parents and teachers Airzooka (I make a small commission that supports my channel) https://amzn.to/3KFD89z Smoke Machine (I make a small commission that supports my channel) https://amzn.to/48PhF5O Science Kits and more (I make a small commission that supports my channel) https://elementarysciencen.wixsite.com/sciencekits Kids Fun Science Online Store https://teespring.com/stores/kids-fun-science Chapters 0:05 KFS Intro 0:09 Airzooka science of the vortex 0:51 How the square cannon works 1:10 Experiment, homemade air cannon with square hole. Will it shoot out square or round? 1:15 Round vortex 1:18 Science Behind it 2:121 Square box and smoke machine SCIENCE BEHIND IT Also known as an air vortex cannon or air bazooka, the AirZooka works by using the volume of air in its plastic container, and the shape of the containers' edges to create a toroidal (or doughnut-shaped) effect. The process begins when the elastic launcher is pulled back, increasing the volume of air inside the container. When the launcher is released, the volume of the air rapidly decreases. The air slows down in the centre of the Airzooka, and speeds up along the edges where it hits the telescoped angles of the plastic shell, thus creating a donought-shaped air vortex. The air vortex travels some distance and retains its energy sufficiently to cause a disturbance when it strikes a person or object. Try blowing-out a candle from 6 meters away! SCIENCE BEHIND A SQUARE HOLE AND ROUND VORTEX - 3RD EXPERIMENT The square opening still creates a circular vortex ring because once the air leaves the box, the fluid dynamics favor a round loop as the most stable shape. How the ring forms When the box is hit, a pulse of air is pushed out; friction along the edges slows the air near the walls, while the air in the center moves faster, rolling the flow into a toroidal (donut-shaped) vortex ring. This rolling motion is determined mainly by the velocity differences in the air, not by the exact shape of the hole, so even a square aperture generates a ring of rotating air. Why it becomes round Along the square’s edges, especially at the corners, the vortex segments interact and “fight” with each other, which destabilizes the sharp corners of the square-shaped ring. Those unstable parts quickly break down and the vortex relaxes into a smoother, circular loop, because a circle minimizes uneven curvature and is the most stable configuration for the ring. Teaches us Newton's laws of motion, specifically his 3rd law: for every action there is an equal and opposite reaction Air vortexs Tordial effect Air pressure MAKING MY OWN AIR CANNON WITH SQUARE HOLE I used a 17"x11"x12" (43cm x 28cm x 31cm) but any size box will work. I cut a 6 inch ( 15 cm) square on the front side of the box. On the back side I cut out a 8 inch (20 cm) hole and lay out plastic but made it loose and duck taped it to the sides. I also took a small piece of duck tape in the middle of the plastic to pull out the plastic before I hit it. Now fill with a smoke machine and hit it with your hand and you should get your vortex. #airzooka #aircannon #vortex