Abstract
On the basis of picking up the structural feature parameters of labyrinth channels of drip irrigation emitters, the hydraulics performance experiments on integral labyrinth emitters were performed in order to summarize the design principle for labyrinth channels. The integral labyrinth emitters were made by means of utilizing rapid prototyping technique. Using multivariable linear regression, formulas of pressure versus flow and regression plots for different emitters were induced. The formulas of flow versus structural feature parameters were summarized based on the trapezoid unit, and those regression formulas were verified through experiments. The relationships among flow, pressure and cross-section dimension of this labyrinth channel were established. Furthermore, the effect of channel fabrication error on the flow rate of emitters was analyzed, which provided a basis for parameterized structural design and precision control in the fabrication of emitters.
| Original language | English |
|---|---|
| Pages (from-to) | 51-55 |
| Number of pages | 5 |
| Journal | Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery |
| Volume | 36 |
| Issue number | 12 |
| State | Published - Dec 2005 |
Keywords
- Drip irrigation emitter
- Feature parameters
- Hydraulics performance
- Labyrinth channels
- Regression analysis