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| exploration.grc.nasa.gov |
This website was extremely helpful in understanding the "science side" of water rockets. In this website, NASA gives an overview of the anatomy of a water rocket. There are four forces working in flight upon a water rocket including, weight, thrust, lift and drag. Thrust is the force which moves the rocket through the air. In this case, thrust is caused by the expelled water. Lift and drag are vector quantities. Lift is a force which acts perpendicular to the direction of motion. Drag acts in the opposite direction of motion. When the rocket is placed on the launch tube it becomes a closed pressure vessel. The pressure in the rocket will then equal the pressure created by pumping air into the rocket. The water acts as the propellant for the rocket. Overall this website was very helpful in understanding how water rockets function.
Nice posting. I do like how it is embedded into your post and how your description explains itʻs relevance to you. Another good tip is to be sure to try to keep the rocketʻs center of mass higher than the center of pressure. Some of the sites posted in our wiki discuss this and it is important for a stable rocket flight (as you will see tomorrow)
ReplyDeleteIt is also good that you placed the source of the image and gave it itʻs appropriate credit. Great job and good luck on launching.