CAJ | 학술논문

基于Fluent软件结合标准k-ε两方程湍流模型与简化的双流体Mixture模型对涡旋澄清池沉淀区进行三维数值模拟，通过验证表明该模型能够很好地模拟池中水流流场以及污泥的分布情况。在入口流量及悬浮物浓度不变时利用该模型对不同挡板长度、斜板间距与倾角进行了模拟研究，进而选择最优结构参数，以期增强沉淀效果、提高去除率。根据数值模拟结果，同时综合实际情况，得出涡旋澄清池沉淀区最优结构参数：挡板长300 mm，斜板倾角50°，斜板间距55 mm。
기우Fluent연건결합표준k-ε량방정단류모형여간화적쌍류체Mixture모형대와선징청지침정구진행삼유수치모의，통과험증표명해모형능구흔호지모의지중수류류장이급오니적분포정황。재입구류량급현부물농도불변시이용해모형대불동당판장도、사판간거여경각진행료모의연구，진이선택최우결구삼수，이기증강침정효과、제고거제솔。근거수치모의결과，동시종합실제정황，득출와선징청지침정구최우결구삼수：당판장300 mm，사판경각50°，사판간거55 mm。
Based on Fluent, combining with the standard k-εtwo equations turbulence model and the simplified double fluid Mixture model, this study carries out three-dimensional numerical simulation of the vortex clarifier sedimentation zone. Validation shows that the model can simulate the pool flow field and the distribution of sludge well. Under the condition of constant inlet flow and suspended solids, simulation research is conducted at different baffle length, inclined plate spacing and dip angle to choose the optimal structure parameters for enhancing precip?itation effect and improving the removal rate. According to the simulation results and actual conditions, it main?tains that optimal structural parameters include the length of the baffles being 300 mm, the optimal plate spacing being 55 mm and the angle being 50°.