سلام اگه میشه مقاله های زیر رو برام قرار بدید
A study of pressure drop fluctuations in a gas-solids fluidized bed Original Research Article
Powder Technology, Volume 76, Issue 2, August 1993, Pages 185-189
Abdulrahim Ahmad Alzahrani, M.M. Noor Wali
Minimum fluidization velocities and maximum...