In the present era of massive urbanization, there is an increase in the urban demand of structures; this coupled with the limited availability of land for construction is leading to the construction of high-rise slender structures. The design of these high-rise structures is primarily governed by the wind loads. With the advent of high computational capability and owing to the limitation of experimentation, the numerical simulation for wind flow around buildings has started gaining popularity. The numerical solution leads to much lower expenses for fixing of errors and gives a faster solution compared to experimentation. The current research work utilizes the open-source CFD software OpenFOAM for numerical analysis. The research work presented in this article compares the effectiveness of the OpenFOAM, CFD software for different aspect ratios of high-rise buildings with and without openings on side faces by comparing them with the available literature. RANS standard k-ε turbulence model is used for simulation purposes. As very high suction pressure is recorded on side faces, this pressure has been reduced by providing openings on side faces. In the simulation, constant inlet velocity of 10 m/s is used. The post-processed results are presented in the form of wind pressure contour plots and streamlines. The maximum and minimum wind pressure coefficients (CP, max and CP, min) are recorded for the different building faces with and without openings. The current study effectively utilizes stable RANS in foretelling the near-façade airflow patterns. The simulation results were able to predict the vortex formation and wake recirculation in the domain.