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机构地区:[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001
出 处:《热能动力工程》2014年第4期434-438,462-463,共5页Journal of Engineering for Thermal Energy and Power
摘 要:为了比较精确的计算波形板惯性分离器的阻力特性,将正交试验方法与数值模拟相结合,讨论了不同数值计算方法对波形板惯性分离器阻力特性的影响,通过极差分析得出最优的数值模拟方法。研究表明:在对惯性分离器进行数值仿真时,湍流模型对计算结果的影响最大,离散格式影响稍小,压力差补和压力速度耦合算法的影响最小;其中,RNG k-ε湍流模型、SIMPLEC算法、二阶压力插值、QUICK离散格式的算法组合对波形板分离器阻力特性的预测误差为6.8%。To comparatively precisely calculating the resistance characteristics of a waveform plate inertial separator,the authors combined the orthogonal test method with the numerical simulation. On this basis,the influence of different numerical calculation methods on the resistance characteristics of the waveform plate inertial separator was discussed and an optimum numerical simulation method was obtained through a range analysis. It has been found that when the inertial separator is numerically simulated,the turbulent flow model has a biggest influence on the calculation results,the discrete format has a slightly small influence and the pressure difference compensation and pressure-speed coupled algorithm has a smallest influence,among which the combination of RNG k- ε turbulent flow model,Simplec algorithm,second-order pressure interpolation and Quick discrete model has an error of 6. 8% in predicting the resistance characteristics of the waveform plate separator.
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