| Numerical simulation for the entrance pressure drop and entry natural converging half angle of rubber componud |
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| DOI： |
| Key Words: rubber compound；entrance pressure drop；entry natural converging half angle；Matlab；numerical simulation |
| Author Name | Affiliation | | YANG Jia | South China University of Technology |
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| Abstract: |
| Based on equations of the entrance pressure drop and entry natural converging half angle of a non-Newtonian fluid in the entry converging flow，numerical simulation for the entry converging flow of NR/SBR compound during extrusion was made using Matlab software，and the influences of non-Newtonian index，channel contraction ratio，apparent shear rate，adhesion coefficient of the fluid and Bagley correction factor on the entrance pressure drop and entry natural converging half angle were discussed.The results showed that under given conditions the entrance pressure losses increased with the increase of non-Newtonian index，channel contraction ratio，apparent shear rate and adhesion coefficient of the fluid；the entry natural converging half angle reduced with an increase of Bagley correction factor，and so on.The simulations were very close to the experimental results. |
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