This main objective of this paper is to investigate the effect of a fluidized bed on the hydronomics by changing bed diameter, sand size and temperature through computational fluid dynamic, CFD. The fluidized bed may influence by sand size, bed diameter and temperature. A full set of experimental set will comprehensive comparison of these type of variety effect on hydronomic. In this paper there are three character hydronomic property being compared, which are pressure drop, bed expansion and bubble character.