| contributor author | H. I. Andersson | |
| contributor author | R. Kristoffersen | |
| date accessioned | 2017-05-08T23:26:37Z | |
| date available | 2017-05-08T23:26:37Z | |
| date copyright | June, 1988 | |
| date issued | 1988 | |
| identifier issn | 0021-8936 | |
| identifier other | JAMCAV-26294#482_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/103562 | |
| description abstract | The ultimate effects of the entrance region on startup flow are considered by one-dimensional steady-state analysis. By roughly accounting for the entrance loss, semiempirical formulas for the average velocity and the hydrodynamic entrance length in terms of a startup flow parameter and an entrance effect coefficient are provided. The startup flow parameter M = gHD4 /2048v2 L2 is identified as the fundamental parameter of the problem. While Szymanski’s solution is recovered in the long pipe limit, i.e., M → 0, the steady-state volume flux through short pipes (M > 0.05) is significantly reduced due to entrance region effects. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Effect of Entrance Region on Laminar Startup Flow in Pipes | |
| type | Journal Paper | |
| journal volume | 55 | |
| journal issue | 2 | |
| journal title | Journal of Applied Mechanics | |
| identifier doi | 10.1115/1.3173703 | |
| journal fristpage | 482 | |
| journal lastpage | 486 | |
| identifier eissn | 1528-9036 | |
| keywords | Flow (Dynamics) | |
| keywords | Pipes | |
| keywords | Entrance region | |
| keywords | Steady state AND Formulas | |
| tree | Journal of Applied Mechanics:;1988:;volume( 055 ):;issue: 002 | |
| contenttype | Fulltext | |