Flow Modeling in Pelton Turbines by an Accurate Eulerian and a Fast Lagrangian Evaluation Method

Table 1

Comparison of FLS and Fluent computational results.

Case description	Discharge (% of BEP)	Net head (m)	Runner speed (rpm)	Number of buckets	Eff. VOF (%)	Eff. FLS (%)
Reference point	100	100	1000	22	88.3	88.5
Low flow rate	50	100	1000	22	91.2	91.3
High flow rate	135	100	1000	22	86.7	86.4
High hydraulic head	100	156	1250	22	88.2	88.5
Modified runner	100	100	1000	18	85.8	85.9
Different bucket design	100	100	1000	20	94.5	95.0