@inproceedings{WiedemannKrautz, author = {Wiedemann, Philipp and Krautz, Hans Joachim}, title = {Numerical study of gas-solid fluidized beds: Analysis of pressure fluctuations for detection of disturbed fluidization}, series = {The 14th International Conference on Fluidization - From Fundamentals to Products}, booktitle = {The 14th International Conference on Fluidization - From Fundamentals to Products}, publisher = {Engineering Conferences International}, address = {New York}, abstract = {Numerical simulations using the Two Fluid Model are performed for gas-solid bubbling fluidized beds. The possibility to detect disturbances in the fluidization process is investigated by common analysis of pressure fluctuations and variation of the computational domain. Additionally the influences of different particle sizes and superficial gas velocities are studied. The results are compared with bubble properties obtained from a digital image analysis technique}, language = {en} }