Today in class we finished our three day mission on finishing our Rubens tube. It took a lot of hard work and labor but we finally completed it. Some background knowledge is that a Rubens' tube is a standing wave flame tube, or simply flame tube. It is obsolete in today's standards of physics apparatus for demonstrating acoustic standing waves in a tube. Never the less it's still fun to look at. It was invented by German physicist Heinrich Rubens in 1905, it graphically shows the relationship between sound waves and sound pressure, like an oscilloscope. We decided to do this after watching countless videos on YouTube and we then decided to take matters into our own hands. The first couple of days just consisted of waiting for parts to arrive and learning about how it worked. The remainder of the time we worked as fast as we could to try to get it done. Overall this was my favorite project by far. This is work I am proud to show off and be enthusiastic about.
Looking Back:
Overall I'd say we got really desirable results. At first the tube was working when we put music in it but it was a little sketchy. It worked but it kept running out of fire. So our next step was then to add another propane tank. After adding the propane we got the results we were looking for. It was amazing you could see the sound waves moving through the tube as the music was playing. We even got to see two peaks emerge as music was playing. Overall after adding an additional propane tank we were able to get the results we were looking for.
Looking Beyond:
The basic principles on how this experiment worked was by sound waves and vibrations. As the sound vibrations it would cause pressure to vary within the tube causing the fire to go up and down. Using Bernoulli's principle, the gas flow is proportional to the square root of the pressure difference between the inside and outside of the tube. With this being said the flame height depends non-linearly on the local, time-dependent pressure. The time average of the flow is reduced at the points with oscillating pressure and thus flames are lower. So in conclusion more pressure equals more flame height.
Looking Inward:
I strongly believe that my group got desirable results. Everything might have no worked out perfectly at first but after a couple of trials we were able to achieve what we wanted. In this experiment I believe that I performed really well. I worked hard on it every day and never gave up on it. Their might of been times were all hope seemed lost but I kept telling myself that we would get it done in the end.
Looking Outward:
In this project I I worked with Bryan, Jake, and Josh. I would have to say this is the best group that I have been in. We were all determined to get the tube working. We also split the work up and made sure that everyone had something to do while working on the project. Our group stayed together the whole time and we didn't run into any issues with each other. Overall we collaborated well and we had a fun time doing so.
Looking Forward:
When thinking about what could been better nothing really comes into mind. I mean we dealt with struggles but we overcame them and everything worked as planned. With that being said I would like to take this to the next step. There was this video on YouTube where they took the tube to the next level and made a 3D box that still did the same thing as a Ruben tube but better. It's something that I would like to try maybe in the future.
Take Aways:
Some take a ways that I got from this experiment was to never give up. Sure it seems like a cliche thing to say but it actually worked out for us. We just kept grinding away and never gave up. In the end it actually worked and this is a project that I will never forget. It was so much fun making it and then end result was priceless. Overall the take away I got was to have fun and never give up when all hope seemed lost.
link
https://www.youtube.com/watch?v=ea90dHuibmk
Looking Back:
Overall I'd say we got really desirable results. At first the tube was working when we put music in it but it was a little sketchy. It worked but it kept running out of fire. So our next step was then to add another propane tank. After adding the propane we got the results we were looking for. It was amazing you could see the sound waves moving through the tube as the music was playing. We even got to see two peaks emerge as music was playing. Overall after adding an additional propane tank we were able to get the results we were looking for.
Looking Beyond:
The basic principles on how this experiment worked was by sound waves and vibrations. As the sound vibrations it would cause pressure to vary within the tube causing the fire to go up and down. Using Bernoulli's principle, the gas flow is proportional to the square root of the pressure difference between the inside and outside of the tube. With this being said the flame height depends non-linearly on the local, time-dependent pressure. The time average of the flow is reduced at the points with oscillating pressure and thus flames are lower. So in conclusion more pressure equals more flame height.
Looking Inward:
I strongly believe that my group got desirable results. Everything might have no worked out perfectly at first but after a couple of trials we were able to achieve what we wanted. In this experiment I believe that I performed really well. I worked hard on it every day and never gave up on it. Their might of been times were all hope seemed lost but I kept telling myself that we would get it done in the end.
Looking Outward:
In this project I I worked with Bryan, Jake, and Josh. I would have to say this is the best group that I have been in. We were all determined to get the tube working. We also split the work up and made sure that everyone had something to do while working on the project. Our group stayed together the whole time and we didn't run into any issues with each other. Overall we collaborated well and we had a fun time doing so.
Looking Forward:
When thinking about what could been better nothing really comes into mind. I mean we dealt with struggles but we overcame them and everything worked as planned. With that being said I would like to take this to the next step. There was this video on YouTube where they took the tube to the next level and made a 3D box that still did the same thing as a Ruben tube but better. It's something that I would like to try maybe in the future.
Take Aways:
Some take a ways that I got from this experiment was to never give up. Sure it seems like a cliche thing to say but it actually worked out for us. We just kept grinding away and never gave up. In the end it actually worked and this is a project that I will never forget. It was so much fun making it and then end result was priceless. Overall the take away I got was to have fun and never give up when all hope seemed lost.
link
https://www.youtube.com/watch?v=ea90dHuibmk