Abstract
In terms of the structure and working principle of Francis turbine, a geometric inversion algorithm for parameters calculation in Francis turbine is proposed in this paper. Firstly through defining unit parameters the linear characteristics of turbine are derived in a certain opening, then the geometric parameters can be reversely calculated. The HL160-LJ-25 model turbine is used to verify the linear relation between the characteristic flow and the characteristic efficiency and reversely perform parameters calculation, and then the relation curves are established between the geometric parameters of turbine and the opening of guide blade, which can make us accurately acquire the energy characteristics of the prototype turbine. It is useful for us to acquire the proper parameters of turbine for purposes of reducing pressure fluctuation of turbine and improving its operating efficiency.
| Original language | English |
|---|---|
| Pages (from-to) | 1373-1384 |
| Number of pages | 12 |
| Journal | Discrete and Continuous Dynamical Systems - Series S |
| Volume | 8 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 2015 |
| Externally published | Yes |
Keywords
- Francis turbine
- Geometric inversion algorithm
- Linear characteristics
ASJC Scopus subject areas
- Analysis
- Discrete Mathematics and Combinatorics
- Applied Mathematics