Teapot Effect

 

作者: Joseph B. Keller,  

 

期刊: Journal of Applied Physics  (AIP Available online 1957)
卷期: Volume 28, issue 8  

页码: 859-864

 

ISSN:0021-8979

 

年代: 1957

 

DOI:10.1063/1.1722875

 

出版商: AIP

 

数据来源: AIP

 

摘要:

When tea is poured from a teapot it often runs along the under side of the spout rather than falling into the cup. Recent experiments have shown that this ``teapot effect'' is not due to surface tension nor adhesion, as many have supposed. Therefore, a new explanation is presented which is based upon certain exact solutions of the hydrodynamic equations and which seems to account for the effect. In connection with the analysis some new fluid flows with free boundaries are obtained. In addition a method more satisfactory than the usual one is used to study the stability of these flows.

 

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