Schistosomiasis is a parasitic disease. They propagate in the Yangtze River valley of Chi-na. The spread of the disease is solely through a middle-agent named oncomelania, so the spread ofschistosomiasis by oncomelani...Schistosomiasis is a parasitic disease. They propagate in the Yangtze River valley of Chi-na. The spread of the disease is solely through a middle-agent named oncomelania, so the spread ofschistosomiasis by oncomelania can be controlled by properly designing water intakes which preventoncomelania from entering the farming land or residential areas. In this paper, a successful design pro-cess is reported and a new oncomelania-free intake device is demonstrated in the laboratory. The de-sign of the new intake is based on a sound research program in which an extensive experimental stud-ies have been carried out to gain knowledge of oncomelania eco-hydraulic behaviors and a detailed flowfield information is obtained through CFD simulation.展开更多
Oncemelania is the middle-parasitifer of schistosome. Controlling the oncomelania is the important way of preventing the schistosomiasis. The article mainly introduces the measurement of jet flow field’s velocity in ...Oncemelania is the middle-parasitifer of schistosome. Controlling the oncomelania is the important way of preventing the schistosomiasis. The article mainly introduces the measurement of jet flow field’s velocity in pressure conduit by FVM numerical modeling and using high-tech PIV, and analyses the reason why the Oncemelania could sink to the bottom but not escape from the equipment named Oncemelania-free intake devices.展开更多
基金This work was supported by the National Natural Science Foundation of China (Grant No.50078018) .
文摘Schistosomiasis is a parasitic disease. They propagate in the Yangtze River valley of Chi-na. The spread of the disease is solely through a middle-agent named oncomelania, so the spread ofschistosomiasis by oncomelania can be controlled by properly designing water intakes which preventoncomelania from entering the farming land or residential areas. In this paper, a successful design pro-cess is reported and a new oncomelania-free intake device is demonstrated in the laboratory. The de-sign of the new intake is based on a sound research program in which an extensive experimental stud-ies have been carried out to gain knowledge of oncomelania eco-hydraulic behaviors and a detailed flowfield information is obtained through CFD simulation.
文摘Oncemelania is the middle-parasitifer of schistosome. Controlling the oncomelania is the important way of preventing the schistosomiasis. The article mainly introduces the measurement of jet flow field’s velocity in pressure conduit by FVM numerical modeling and using high-tech PIV, and analyses the reason why the Oncemelania could sink to the bottom but not escape from the equipment named Oncemelania-free intake devices.
