Investigation on the flow similarity of Pelton turbines under high-speed water jet conditions

Q: What does this research mean for the field?

For scaled models of Pelton turbines under high-speed water jets, the unit parameter consistency principle yields higher similarity to the prototype in flow morphology and energy characteristics, whereas the relative velocity consistency principle is better suited for predicting wear rates in specific areas. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Wenhao Chen; Zhizhou Zhao; Chaoyue Wang; Quanwei Liang; Huan Cheng; Jiayi Fan; Zhifeng Yao; Fujun Wang

doi:10.1360/sst-2025-0418

April 1, 2026Scientia Sinica Technologica

Investigation on the flow similarity of Pelton turbines under high-speed water jet conditions

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Key Points

The study aims to assess flow similarity between scaled models of Pelton turbines and their prototypes under high-speed water jet conditions.
Constructed two models using relative velocity consistency and unit parameter consistency principles.
Analyzed internal flow characteristics of the prototypes and their respective models.
Measured various performance metrics including water phase volume fraction and force coefficients.
Relative velocity consistency models showed a 40.06% deviation in water phase volume fraction compared to the prototype.
Unit parameter consistency models exhibited only an 8.42% deviation in water phase volume fraction, indicating superior similarity.
Force correlations for the unit parameter consistency models were significantly higher, suggesting better predictive capacity for energy characteristics.

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Implication

Evaluates hydraulic performance in Pelton turbines, indicating optimal model selection.

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Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/6a1a808f0307b78509432819 https://doi.org/10.1360/sst-2025-0418

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Investigation on the flow similarity of Pelton turbines under high-speed water jet conditions

Key Points

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Implication

Abstract

Discussion

Cite This Study

Investigation on the flow similarity of Pelton turbines under high-speed water jet conditions

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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