CAJ | 학술논문

选用雷诺平均Navier-Stokes方程，采用标准κ-ε模型，定义专门的边界模型条件，运用流体分析软件对圆弧波浪式筛板和直条式筛板的洗选过程分别进行数值模拟，得出了原煤颗粒入流速度为2m/s时，两种筛板在洗选过程中的速度分布图、密度分布图，根据模拟结果分析，对传统的直条式筛板进行优化设计，设计出圆弧波浪式筛板并进行工业性试验，与传统的直条式筛板的透筛物和分选效果进行比较，比较结果表明圆弧波浪式筛板在筛选效果上比直条式筛板更具有优越性，同时也验证了湍流模型选取的合理性。
선용뢰낙평균Navier-Stokes방정，채용표준κ-ε모형，정의전문적변계모형조건，운용류체분석연건대원호파랑식사판화직조식사판적세선과정분별진행수치모의，득출료원매과립입류속도위2m/s시，량충사판재세선과정중적속도분포도、밀도분포도，근거모의결과분석，대전통적직조식사판진행우화설계，설계출원호파랑식사판병진행공업성시험，여전통적직조식사판적투사물화분선효과진행비교，비교결과표명원호파랑식사판재사선효과상비직조식사판경구유우월성，동시야험증료단류모형선취적합이성。
We choose Reynolds-averaged Navier-Stokes equations, using the standardκ-εmodel, definiting the specific boundary model conditions, compiling the corresponding program,separately simulating the washing process of the circular wave-sieve plate and the straight-type sieve plate on the basis of the fluid analysis software, getting the density contours and the Velocity profile of two kinds of sieve model washing process when the raw coal particles injecting velocity is 2 meters per second. According to the analysis of simulation results. We optimize the straight-type sieve plate, Designing the arc wave type sieve plate and doing the industrial test, Comparing with the results of the straight-type sieve plate, The experimental result shows that the circular wave-sieve plate have more advantages than the straight-type sieve plate. The rationality of turbulence model selection and feasibility of fluid analysis program are proven.