阶梯扩散器出口段流场分析

摘要

Numerical flow simulation in turbulence generators, especially in the step diffuser, is investigated. The relationship among structure and pressure, turbulence energy, and the dispersion of fiber are discussed after a series of simulation for the outlet of different length. The method and results are applicable and useful for the further research.%对湍流发生器内的浆流进行两相流动的数值模拟，主要针对阶梯扩散器结构形式。通过改变出口段管长进行多次模拟，得到出口段内的压强、湍动能、纤维分布与阶梯扩散器尺寸间的关系，为以后研究工作提供依据。