# Orr–Sommerfeld equation

> eigenvalue equation describing the linear two-dimensional modes of disturbances

**Wikidata**: [Q7104117](https://www.wikidata.org/wiki/Q7104117)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Orr–Sommerfeld_equation)  
**Source**: https://4ort.xyz/entity/orr-sommerfeld-equation