Besides the external aerodynamics, also the airflows inside the vehicle are relevant. Internal airflows can still de divided in 2 categories: (1) internal duct flows for engine cooling or cooling of air-conditioning units, and (2) the airflow inside the cabin.
The internal duct flows have a significant impact on the total aerodynamic drag of the vehicle and should therefore be considered together with the external aerodynamics of the body. Moreover, the uniformity of the duct flows can influence the heat transfer in coolers or HVAC systems. Actiflow can help guaranteeing a good efficiency of these systems by performing the right flow analysis and suggesting optimized designs.
The airflow inside the cabin is relevant for the comfort and health of passengers. Internal ventilation in busses for example is important to minimize the risk of spreading particles like viruses. Optimization of ventilation systems and minimizing their energy consumption is even more important for electric vehicles, for which the energy balance is most critical.
Also here, we study the flow effects, the efficiency and the energy consumption of ventilation systems through CFD computer simulations. Based on the results, we formulate conclusions and recommendations, and we suggest new designs which we validate by new flow simulations.
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