Development and application of Venturi diluter;
文氏管式稀释器的开发与应用
The paper focuses on the research of the diluter DI-1000, which is in the DMM230 system of the testing equipments of vehicle tail-gas emission which is imported up to date.
本文构建了稀释器的三维几何模型,在合理假设的基础上建立了稀释器内部流场的数值模型;以CFD数值计算为理论基础,以计算流体软件FLUENT为平台,采用RNG k ?ε湍流模型和SIMPLE算法,用有限体积法离散偏微分控制方程,对稀释器内部的三维定常流动特性进行了研究。
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