Abstract
In order to resolve the clogging problem of emitter from structure design and aiming at various kinds of small labyrinth channels of the drip irrigation emitters, the Computational Fluid Dynamics (CFD) was used to conduct the numerical simulation and visually reveal the flow behaviors in the labyrinth channels of emitters. The velocity field was measured by Laser Doppler Velocimeter (LDV) in hydrodynamic similarity experiment to verify the computational results. On this basis, the anti-clogging mechanism was analyzed. A main-route anti-clogging design method was proposed to optimize the structure in the stagnant areas in order to enhance anti-clogging performance of emitter channels. And it was verified through anti-clogging experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 1-7 |
| Number of pages | 7 |
| Journal | Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering |
| Volume | 21 |
| Issue number | 6 |
| State | Published - Jun 2005 |
Keywords
- Clogging
- Digital simulation
- Drip irrigation emitters
- Labyrinth channel
- Main-route anti-clogging design