Reynolds number

Etymology
.

Noun

 * 1)  A dimensionless parameter that determines the behavior of viscous flow patterns. In pipe flow a value less than about 2,000 (known as the critical Reynolds number) produces laminar flow, one above about 3,000 produces turbulent flow (intermediate values produce unpredictable behavior).

Translations

 * Chinese:
 * Mandarin:
 * Hungarian: Reynolds-féle szám
 * Japanese: レイノルズ数
 * Portuguese: número de Reynolds
 * Russian: число́ Рейнольдса