مقايسه عددي نيروي دراگ وارد بر توپ فوتبال و راگبي با استفاده از نرم افزار FLUENT

Using numerical methods to solve governing equation can be good a method to decrease time and cost of research in comparison to experimental models. Nowadays with increase of computational power of computers and using numerical software in the field of CFD and applications of numerical methods to analyze flow ham become stronger. In this article we analyze drag force on the rugby and soccer ball. For this reason, at first the geometric models have been done in GAMBIT software and then through FLUENT software which is based on volume method, we analyze the model. We selected k-ε as turbulent model. The result of this analysis has been shown by flow pattern, distribution of contours of velocity, pressure and turbulent kinetic energy