惠 康， 谭义海.加压液化输沙技术不同孔径对“浑水水力分离清水装置”流场影响的数值模拟Journal of Water Resources and Water Engineering[J].,2015,26(2):145-149
加压液化输沙技术不同孔径对“浑水水力分离清水装置”流场影响的数值模拟
Numerical simulation of effect of pressurized liquefied sediment transport technology of different apertures on field of “turbid water hydraulic separation device”
To explore the best aperture of turbid water hydraulic separation device applied by pressurized liquefied sediment transport technology in the turbid water hydraulic power separation device,the paper used the FLUENT software,RNG k-ε turbulent model and multiphase mixture model to simulate the two-phase 3-D water-sediment flow field with different pressurized apertures. According to the results of model calculation,it analyzed the change of the flow field inside the sediment distribution device with different pressure liquefaction under the action of water seepage hole aperture.Research shows that when the pressurized liquefied aperture is 2mm, the internal concentration device layers is obvious,the water sediment disturbance on cone bottom is drastic and there is no sediment deposition.There is little sediment concentration in outlet overflow.The water sediment separation effect is evident,which shows the ideal state of pressurized liquefied sendiment transport technology. The results laid the theoretical foundation for the combination of pressurized liquefied sediment transport technology with device.