hi sir , i've read carefully your projects providings,
i am chemical engineer, master's degree, i know exactly what you want in your object, fluidized bed is a part of porous side or materials,we have also fixed bed, porosity,fluidisation speed, some correlations describe reynolds number to know the regime, and pressure losses ,friction factor,,,and a lot of other datas, i studies this field for a semester in the university, so if that what you want exactly don't hesitate to contact me