Abstract
Three-dimensional turbulent jets with rectangular, and elliptic cross-sections are simulated with a finite-difference numerical method. The filtered Navier-Stokes equations are solved at high Reynolds numbers, along with a sub-grid scale model to approximate effects of the unresolved scales. A 2-N storage, third-order Runge-Kutta scheme is used for temporal discretization and a fourth-order compact scheme is used for spatial discretization. The phenomenon of axis-switching is observed in both the rectangular and the elliptic jets, and it is confirmed that this is based on self-induction of the vorticity field. The results are contrasted with those from the simulation of a round jet in which this phenomenon is absent.
| Original language | English |
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| State | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97. Part 16 (of 24) - Vancouver, Can Duration: Jun 22 1997 → Jun 26 1997 |
Conference
| Conference | Proceedings of the 1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97. Part 16 (of 24) |
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| City | Vancouver, Can |
| Period | 06/22/97 → 06/26/97 |