Knudsen number

Summary

Knudsen number ranks in the top 2% of general entities by monthly Wikipedia readership (56 views/month).^[1]

Key Facts

• Martin Knudsen is named after Knudsen number^[2].
• Knudsen number's GND ID is recorded as 7736424-7^[3].
• Knudsen number's subclass of is recorded as characteristic number^[4].
• Knudsen number's subclass of is recorded as dimensionless number in fluid mechanics^[5].
• Knudsen number's subclass of is recorded as criterion of similarity^[6].
• Knudsen number's Freebase ID is recorded as /m/023x2q^[7].
• Knudsen number's described by source is recorded as ISO 80000-11:2019 Quantities and units — Part 11: Characteristic numbers^[8].
• Knudsen number's defining formula is recorded as \mathit{Kn} = \frac{\lambda}{l}^[9].
• Knudsen number's Great Russian Encyclopedia Online ID is recorded as 2075407^[10].
• Knudsen number's ISQ dimension is recorded as 1^[11].
• Knudsen number's maintained by WikiProject is recorded as WikiProject Mathematics^[12].
• Knudsen number's Microsoft Academic ID is recorded as 121838276^[13].
• Knudsen number's in defining formula is recorded as \mathit{Kn}^[14].
• Knudsen number's in defining formula is recorded as \lambda^[15].
• Knudsen number's in defining formula is recorded as l^[16].
• Knudsen number's Wolfram Language quantity ID is recorded as KnudsenNumber^[17].
• Knudsen number's quantity symbol is recorded as \mathit{Kn}^[18].
• Knudsen number's recommended unit of measurement is recorded as 1^[19].
• Knudsen number's IEV number is recorded as 113-03-38^[20].
• Knudsen number's OpenAlex ID is recorded as C121838276^[21].
• Knudsen number's Encyclopedia of China is recorded as 227203^[22].

Why It Matters

Knudsen number ranks in the top 2% of general entities by monthly Wikipedia readership (56 views/month).^[1] It has Wikipedia articles in 19 language editions, a strong signal of global cultural recognition.^[23] It is known by 5 alternative names across languages and contexts.^[24]