Compared with front engine vehicle, the windward side�s flow field in cooling model of rear engine\nbus is complicated and it can�t be calculated by means of 1D model. For this problem, this paper\nhas used Star-CCM to build a 3D simulation model of cooling system, engine compartment and\ncomplete vehicle. Then, it had a 1D/3D coupling calculation on cooling system with Kuli software.\nIt could be helpful in the optimization design of the flow field of rear engine compartment and optimization\nmatch of cooling system.
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