The global warming crisis and the increase in urban population are significant issues for human society. It has required using passive solutions in various industry sectors, particularly construction. The primary purpose of this study was to propose a novel and creative passive element for creating natural ventilation in buildings in coastal areas and areas with a prevailing wind flow. This novel element works according to the aerodynamics law and the difference in air pressure due to wind flow, called wind chimney. CFD was used in Comsol Multiphysics software for simulation to achieve this aim, and data validation was performed using the wind tunnel. Initially, the wind chimneys with nine different aerodynamic forms for two cases of buildings in the coastal area of Bushehr, Iran, were simulated as case studies. In building A, the wind chimney was located on one side. In building B, it was situated in the middle of the building. The performance of the wind chimneys has been compared to obtain the best aerodynamic form for each building. The results showed that case seven of aerodynamic form for building A, and case three of aerodynamic form for building B had the best performance in terms of natural ventilation. In addition, the parametric optimization of the aerodynamic form was performed in terms of location and angle. The best performance case was proposed for buildings A and B to utilize in buildings as an innovative passive element. The air flow rate of the wind chimney's output for buildings A and B was 3.66 m2/s and 13.2 m2/s, respectively, which was 116.5% and 98.8% higher than wind chimneys without aerodynamic form, respectively. Moreover, the ACH of building A with an optimized wind chimney was 117.9% higher than building without it, and this amount for building B was calculated at 98.7%.