The raceway pond is an open–closed circuit used for the cultivation of microalgae, which is gradually used for the yield of biofuel. Several advantages make raceway ponds a suitable option for the production of biofuel. It saves energy, reduces maintainable costs, and reclaims nutrition, which are essential for a better yield of microalgae. In the present scenario, the production of biofuel from renewable resources is in wide demand. The increasing demand for using this technique is due to its low construction and maintenance costs. The study of hydrodynamics in RP provides a better understanding of increasing the productivity of ponds. The study using computational fluid dynamics (CFD) provides more accuracy in understanding various hydrodynamic parameters, which helps in providing a better model of the raceway pond for increasing its productivity. The simulation using ANSYS Fluent has been performed by various authors to understand various parameters that help to increase the productivity of the pond. Modeling of RP is a cost-effective way to determine its performance under various environmental and physical conditions. The present study aims to use the large eddy simulation (LES) turbulence model to understand the hydrodynamic behavior of raceway ponds using ANSYS-FLUENT software. The study is performed by taking three different aspect ratios (10, 15, and 20) with constant inlet velocity of flow to understand the performance of the raceway pond. The LES turbulence model is used to determine the effect of velocity and pressure on the performance of RP by varying the geometry of RP. The paddlewheel is used for the mixing mechanism in the raceway pond. Hence, the modeling also understands the hydrodynamic behavior of the raceway pond by varying its position with constant rotation speed.