Shear Elasticity in Organic Liquids
| Autor: | W. McSPORRAN, D. R. Oliver |
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| Rok vydání: | 1966 |
| Předmět: | |
| Zdroj: | Nature. 212:918-919 |
| ISSN: | 1476-4687 0028-0836 |
| DOI: | 10.1038/212918b0 |
| Popis: | AT sufficiently high velocity gradients, shear elasticity can show itself in a fluid by the development of stresses normal to the direction of shear. In I960, Reiner1 claimed to have detected such normal stresses in toluene at velocity gradients of about 106 sec−1. Reiner's rotating disk type of apparatus had certain drawbacks: imperfections in the plate surfaces could produce normal forces even in Newtonian fluids, and secondary flow phenomena, centrifugal and viscous heating effects were difficult to eliminate. For these reasons, the results were open to some doubt. |
| Databáze: | OpenAIRE |
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