propeller-type water turbine which has adjustable blades
A Bonneville Dam Kaplan turbine after 61 years of service
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and water level.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).