# Aerodynamic drag and noise reduction of a pantograph of high-speed trains with a novel cavity structure

> Research article (Physics of Fluids, 2024) · cited 25× · AI/ML

**Wikidata**: [openalex:W4391521665](https://www.wikidata.org/wiki/openalex:W4391521665)  
**Source**: https://4ort.xyz/entity/aerodynamic-drag-and-noise-reduction-of-a-pantograph-of-high-speed-trains-with-a-novel-cavity-structure