尹晓青1，仇海龙1,王继勇1，高亚南2，葛西坤1
1.潍柴重机股份有限公司，山东 潍坊 261061；2.潍柴动力股份有限公司，山东 潍坊 261061
摘要：以某静音机组为研究对象，采用一维与三维耦合仿真方法对机组热管理进行分析计算，研究一维与三维耦合仿真的准确性。在利用三维软件Fluent完成机舱内空气流动、风速等参数计算的基础上，利用一维软件Kuli对模型进行标定，得到一维中冷器、热交换器的出水温度分别为55.40、87.51 ℃。进行机组热平衡试验，得到中冷器、热交换器出水温度分别54.40、88.48 ℃。仿真计算与试验结果误差较小，表明一维与三维耦合仿真精确性较高，可为后续机组热平衡的设计及仿真提供参考。
关键词：静音机组；机舱；热管理；一维仿真；三维仿真；耦合
Abstract:Taking a silent unit as an example, onedimensional and threedimensional coupling simulation method are used to analyze and calculate the cooling performance of the unit, and the simulation results are verified by experiments. The threedimensional software Fluent is used to complete the calculation of air flow and wind speed in the cabin. Then based on the threedimensional simulation calculation results, the model iscalibrated using the onedimensional software Kuli, and the outlet water temperature of intercooler and heat exchanger are 5540 ℃ and 87.51 ℃. Through the heat balance test, the outlet water temperature of intercoder and heat exchanger is 5440 ℃ and 88.48 ℃. The comparison between the calculation and the test shows that the error between the two is small, and within the acceptable range, which provides a reference for the subsequent design and simulation of the unit thermal balance.
Keywords:silent unit; engine room; thermal management; onedimensional simulation; threedimensional simulation; coupling
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