OPTIMIZED DESIGN OF THE TOILET SIPHON PIPELINE BASED ON CFD FLOWFIELD ANALYSIS
基于CFD流态分析技术的座便器虹吸管道优化设计

The RNG $k$-$\varepsilon$ turbulence model and the VOF(volume of fluid) method are adopted to solve 3D turbulent flow field in the toilet in Fluent. The flow pattern regulation in the toilet is investigated. The influences of the siphon pipeline profile on speed distributions, press distributions and siphonage performance are also analyzed. The optimum hydraulic design of siphon outlet has been realized based on CFD flowfield analysis. It is proved that the numerical simulated properties of the toilet have a good agreement with the PIV test.