alexa Abstract | Heat exchange coupling simulation of vehicle underhood based on Lattice-Boltzmann Method

Journal of Chemical and Pharmaceutical Research
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To guide the design of front bumper opening and grille pattern, study the heat exchange performance and flow distribution of cooling system under specified conditions, whole vehicle with detailed underhood geometry was modeled. By adopting Lattice-Boltzmann method (LBM hereinafter) to simulate the thermal performance in Digital wind tunnel, underhood flow and temperature field as well as Radiator exit temperature were modeled, which the result shows good correlation to the test data. Therefore, LBM is verified to be quite suitable for evaluating heat exchange of underhood which has complex geometry. Finally, based on the analysis model, proposals on front bumper opening and grille pattern optimization were put forward, and 6.94% of radiator heat dissipation capability improvement was achieved through several rounds of iterations

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Author(s): Xiong Chun Ying Liu Shu Ying Yu Xian Zhong and Li Xiao Hua


Cooling system, Lattice-Boltzmann, Heat exchange, Coupling simulation

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