Research On Hydraulic Flowing Circulation Impacting On Water Quality In Erose Garden Water

Water is the soul of the classical garden. Nice landscape of waterbody in the garden attracts lots of visitors. For the garden's character, the shape of the garden water is erose. In recent years, garden water was heavy polluted, waterbody in the garden flowed stagnantly, the ability of waterbody to reaeration was very poor. So that, the quality of garden water was so terrible that harm the garden's attraction.The Humble Administrator's Garden of Suzhou was used for an example in this thesis. On the basis of experiment in lab and classical garden, researches were described and discussed as follows: under the protection of the World Heritage, hydraulic flowing circlutation system was designed and water flowing can be improved by the system. FLUENT, a commercial CFD software, was applied to simulate the water flowing driven by a pumping system in erose garden water. The results show that under different conditions the calculated findings in water flowing may have a practical significance to guide practice, The garden water's law of reaeration was studied under the condition of turbulent or non-turbulent. Surface transfer coefficient and formula of water body without turbulent were given by the studied. However, the reaeration ratio has a close relationship with the depth of water for turbulent water body. The surface reaeration of turbulent water is related to turbulent kinetic energy, but the more important factor is the surface disturbing kinetic energy. Different hydraulic flowing circulation conditions can affect the garden water quality. The quality of garden water will be improved after a long operation of the system. To improve the problems under the simple conditions of hydraulic flowing circulation, optimum conditions were stuidied by the FLUENT software.The research method and results obtained in the article will provide scientific foundation for the technology of hydraulic flowing circulation system in erose garden water and the results show that under different conditions the results of hydraulic flowing circulation system may have a practical significance to guide practice.