The discussion focuses on calculating the glass thickness required for a bottomless aquarium, specifically one measuring 18"x18" by 36" high, with 6" submerged in a pond. Key concepts include understanding gauge pressure and absolute pressure, as well as the implications of air pressure on water levels. The maximum height for such an aquarium is approximately 10 meters, beyond which a vacuum may form. Participants emphasize the importance of determining the highest pressure point to accurately calculate glass thickness.
PREREQUISITESAquarium designers, structural engineers, physics students, and anyone interested in the mechanics of fluid pressure in unconventional aquarium setups.
What do you expect the pressure to be at the same level as the surface of the pond?Jerry Jewell said:How do I calculate glass thickness on a bottomless aquarium where air pressure is holding the water up. Example: 18"x18" by 36"' high closed top. 6" of the aquarium is submerged in a pond.
Thanks.
And if you answer those questions I asked you'll understand the physics involved well enough to do the calculation for yourself.Jerry Jewell said:Hi
Thanks.
I need to know how to determine the pressure at the highest pressure point in order to calculate the thickness of the glass needed for various sizes of bottomless aquariums.
We've been waiting for you to post your answers to the two questions posed in post #2 of this thread. If you aren't sure, go with your best efforts.Jerry Jewell said:If it's so simple why hasn't anyone done it ?
Use the search function, we had this already. The key is: A normal aquarium frame is designed to hold the glass against the force from the inside, not from the outside.Jerry Jewell said:How do I calculate glass thickness on a bottomless aquarium where air pressure is holding the water up. Example: 18"x18" by 36"' high closed top. 6" of the aquarium is submerged in a pond.
Thanks.