the idea is to fire an air/ air+water mixture downwards just before 'touchdown' to increase the duration for which the rocket decelerates. Retrograde recovery device- this is probably one of the most difficult projects involving water bottle rockets. This helps to increase altitude, obviously. Increase the volume of your water rocket- I'll actually discuss this in detail later on, but essentially one can splice bottles together to create larger pressure chambers. Barometric altimeter with data logger- using a cheap altimeter, you can create a time versus altitude graph, as well as measure air temperature (although this depends on the altimeter breakout board) Accelerometer-based parachute deployment- an accelerometer can be used to calculated velocity, acceleration, and may be used for parachute deployment
#WATER ROCKET SIMULATION HOW TO#
Most of these I've used in my project, and I'll provide ideas on how to do then as well: These are all I'll discuss in depth, but here are a few for you to try out. Involves an Arduino and 7-segment display, as well as a few push buttons and LEDs. Pretty simple, I think we'll do it to help time the parachute deployment as well. I will take no responsibility for your misfortunes. Only do this if you are sure that your recovery mechanism works all the time and with no faults. Generally uses a pyrotechnic charge in model rockets but we will use a spring-loaded mechanism with a servo latch device. Involves deploying a small parachute to slow down the descent speed of a rocket. Asking questions like this is fundamental to developing a functional product. It's never worse when you forget a brilliant idea that's crucial to your project's success. These are a few points that will be addressed during construction. What if I don't want to get wet while launching the rocket? It would be nice to have a timer countdown device. I don't want it wrecked, so I'll need some sort of recovery mechanism. What if we could watch the flight from the rocket? A digital camera should do the trick.īut- my camera costs a lot. I don't know about you, but this gets somewhat boring. The issue with the simple bottle rocket is that we can not do anything with it other than launch it and watch it fall back down. Our goal is to design the highest-flying rocket with additional features that makes it more interesting than a simple 2L bottle rocket- so what does that involve? Step 2: To Be Advanced or Not - That Is the Question!
The faster the air moves, the greater the volume of that air is (that interacts with the rocket) over a given time period. This type of trade off occurs here as well- we cannot increase thrust without increasing drag. a bicycle cannot have a gear chain ratio that is oriented both for speed and strength at the same time.
There is this effect in theory and in the real world that prevents us from doing everything at maximum potential. Note that decreasing your rocket's weight to almost zero would decrease it's performance- there is an ideal mass to volume ratio that enables best performance. Mass- the lighter the rocket, the higher it goes. Stability- the rocket's Cp must be behind it's Cg- this will make the rocket stable and therefore increase maximum altitude.Ĥ. Thrust- the more power the rocket produces, the higher it will go. Drag- the more drag on a rocket, the lower it's apogee. Key points to remember during design and construction (there may be more):ġ. Here are a few basic terms I'll be using:Īpogee- highest point on the parabola described by the rocket's flight, or, in other words, the point at which the rocket is farthest from the ground,Įverything else is relatively self-explanatory. Now, this is rocket science, but that doesn't mean it's that difficult. I do present a project build, but I encourage you to alter the design and functionality as you see fit.įinally, if you like it, please vote for it in any contest it may be in! Thanks! Step 1: A Little Lecture on Rocket Science I am trying to help you start thinking and designing water rockets on your own, using your own ideas. Please keep in mind: My goal here is not to show you how to build one project.
#WATER ROCKET SIMULATION FREE#
If you're just looking for a step-by-step project, I've got that as well.īy the way, this is my first tutorial, so if you feel that something's not done right, feel free to add a comment.
If you want to design your own rocket, I'll help you plan and design. The best part is that most of the things required are either cheap or things you can find at home. Here, I'll show you the basics of building the next-level water rocket that can be the basis for many interesting projects. You've probably taped on some fins, a paper nosecone, and presto! You launch a "rocket" that is loads of fun- and watched it fall down from the sky. You've all probably had a chance to do that classic high-school experiment: pop bottle rockets.
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