EFFECT OF WIND INDUCED ON LOW RISE BUILDINGS WITH MONO-SLOPE ROOF

Abstract

In this research study, we performed a comprehensive analysis of a low rise building at varying roof angles like 10о , 20 о and 30 о using ANSYUS CFX software package. The interference effect is analysed of similar low-rise building placed at different spacing, the spacing was from 0 to 2b with incremental increase in width of b/2 i.e. 0, b/2, b, 3b/2 and 2b. Also, the direction of wind incidence was varied from 0 о to 180 о . Ansys CFX fluid flow package has been used to carry out the simulations using a standard k-ε turbulent model. The simulations have been carried out for 5 wind incidence angles at an interval of 45ᵒ. The comparison of the roofs is done for the coeffient of pressure . The value of coeffient of internal and external pressure were also computed. The values of coeffient of pressure were varying with roof angles and considerable increase in the coeffient of pressure can be seen. The coeffient of internal pressure was maximum for the front building. The coeffient of pressure due to interference effect was seen to be higher for wind direction from 90 о to 180 о as compared to 0 о to 90 о and coefficient of pressure and coeffient of pressure decreases with increase in spacing.