THE CHANGES OF CILINDERS SHAPED WET GRANULAR'S STRUCTURE BY HEATING PROCESS

• Main Author: FIRDAUS TRI WAHYU LESTARI (NIM : 10214054), ZAHROTUL
• Format: Final Project
• Language: Indonesia
• Subjects: Fisika
• Online Access: https://digilib.itb.ac.id/gdl/view/31874
• Institution: Institut Teknologi Bandung

Granular material is a collection of macroscopic particles, such a sand or glass beads, which are visible to naked eye. The effect of liquid in between granular makes the character of granular changes. because of that, granular material can be divided into two groups, dry granular and wet granular. One of the most differences between them is the maximum angle that can reach of material structure. Wet granular can make angle 90? or more, and dry granular can make angle until 35?. Drying wet granular material can make the angle of granular changed. Drying granular can be done by heating sample of wet granular with cylindrical shape. Temperature of heating is kept on stability, it makes the changing of structure can be observed. Observation structure of wet granular became the base of computational modelling. Modeling sample is done in 2 dimensions by arranging granules into rectangles with a certain height. The liquid bridge in the granular is modeled with a spring, so for every 2 second, the spring disappears. This change models the evaporation process in the heated wet granular. The modeling results show that the final structure of the sample is a granular pyramid. The final structure of th