Fluidized Bed

Low Reynolds Number Fluidzed Bed. This is a closeup of the middle section of a fluidized bed. The cell is 30cm tall, by 8cm wide, by 0.8cm deep. The particles are monodisperse glass beads of diameter 309 microns, at an average volume fraction of 10%. The liquid (glycerol/water) is pumped upwards at the base of the cell through the particles to achieve fluidization. Fluidization results in a steady state system where the particles are perpetually sedimenting, and the average particle velocity is zero. The viscosity is high enough here that the Reynolds number is smaller than 1. What can be seen here are the swirling motions due to particle velocity fluctuations that spontaneously arise

Category:

Howto & Style

Tags:

• Fluidized
• fluid
• instability
• sedimentation
• physics

[Chemgreece]

@ston3pony how did you understand that..i don't see anything like that mentioned..? by what i see it is just a fluidized bed of particles nothing more..

[ston3pony]

It cultures bacteria, it grows bacteria that eat the ammonia from the water.

[Zenome]

It kills the baterial within the and cleans the water.

[loveuhorse]

um, wuts the point of this