| contributor author | H. Fukayama | |
| contributor author | M. Tanaka | |
| contributor author | Y. Hori | |
| date accessioned | 2017-05-08T23:09:56Z | |
| date available | 2017-05-08T23:09:56Z | |
| date copyright | October, 1980 | |
| date issued | 1980 | |
| identifier issn | 0742-4787 | |
| identifier other | JOTRE9-28638#439_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/93885 | |
| description abstract | The friction reduction by dilute polymer solutions is investigated experimentally in turbulent journal bearings. The effects of polymer substances, polymer concentration, bearing clearance, and journal eccentricity on friction reduction are examined over the wide range of Reynolds number in the superlaminar regime. In the experiments, the friction of polymer solution is less than 40 percent of that of Newtonian turbulent flow under the best conditions. The calculated friction factor for the Couette flow is in good agreement with the corresponding measured one. Degradation of highpolymer is also investigated experimentally, and is found to be affected by polymer concentration. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Friction Reduction in Turbulent Journal Bearings by Highpolymers | |
| type | Journal Paper | |
| journal volume | 102 | |
| journal issue | 4 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.3251578 | |
| journal fristpage | 439 | |
| journal lastpage | 444 | |
| identifier eissn | 1528-8897 | |
| keywords | Friction | |
| keywords | Turbulence | |
| keywords | Journal bearings | |
| keywords | Polymers | |
| keywords | Polymer solutions | |
| keywords | Flow (Dynamics) | |
| keywords | Reynolds number | |
| keywords | Clearances (Engineering) AND Bearings | |
| tree | Journal of Tribology:;1980:;volume( 102 ):;issue: 004 | |
| contenttype | Fulltext | |