Paul Richard Heinrich Blasius
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| Paul Richard Heinrich Blasius | |
| Born | August 9, 1883 Berlin, Germany |
|---|---|
| Died | April 24, 1970 Hamburg, Germany |
| Citizenship | German |
| Nationality | German |
| Fields | Fluid mechanics and mechanical engineering |
| Alma mater | University of Göttingen |
| Doctoral advisor | Ludwig Prandtl |
| Known for | Blasius boundary layer |
Paul Richard Heinrich Blasius (1883 - 1970) was a German fluid dynamics engineer.
He was one of the first students of Prandtl who provided a mathematical basis for boundary-layer drag but also showed as early as 1911 that the resistance to flow through smooth pipes could be expressed in terms of the Reynolds number for both laminar and turbulent flow.
One of his most notable contributions involves a description of the steady two-dimensional boundary-layer that forms on a semi-infinite plate which is held parallel to a constant unidirectional flow U.
[edit] Correlations
First law of Blasius for Turbulent fanning friction factor:
f / 2 = 0.039 * Re − 0.26
Second law of Blasius for Turbulent fanning friction factor:
f / 2 = 0.023 * Re − 0.26
[edit] References
- Hager, W.H., "Blasius: A life in research and education," Experiments in Fluids, 34: 566-571 (2003)
| Persondata | |
|---|---|
| NAME | Paul Richard Heinrich Blasius |
| ALTERNATIVE NAMES | Heinrich Blasius |
| SHORT DESCRIPTION | German engineer |
| DATE OF BIRTH | August 9, 1883 |
| PLACE OF BIRTH | Berlin, Germany |
| DATE OF DEATH | April 24, 1970 |
| PLACE OF DEATH | Hamburg, Germany |
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