CFD Analysis of Different edge shape of RCC Chimney using M25 Grade of Concrete

Abstract

Abstract The purpose of chimney is to vent hot flue gases from furnaces/boilers. The structure is vertical and mostly of circular or rectangular shape. The objective of current research to investigate the wind load effect on chimney using Fluid Structure Interaction (FSI) studies. The FSI investigation is conducted on chimney using ANSYS simulation package. The induced pressure, drag force and velocity fields are evaluated across the chimney with different shapes i.e., sharp edged, chamfered, and filleted edged shapes. The FSI study is conducted on chimney with M25 concrete material. The drag force values are obtained for each design and minimum drag force is obtained for filleted design of chimney. The drag force induced on filleted chimney is 3.33 times lower than generic design. The drag force induced on chamfered chimney is 16.39% lower than generic design The lowest induced pressure is observed on filleted chimney and highest induced pressure is observed on generic design.