Osborne Reynolds Pipe Flow - Direct Computation from Laminar through Transition to Fully Developed Turbulence
Event details
| Date | 23.06.2014 |
| Hour | 11:00 › 12:00 |
| Speaker |
Prof. Xiaohua Wu, Royal Military College of Canada Bio: B.Sc. from the University of Science and Technology of China; Ph.D from the University of Manitoba, Canada; Post-Doc at CTR (Center for Turbulence Research), Stanford University. Currently Professor and Canada Research Chair at Royal Military College of Canada. Associate Fellow of AIAA. |
| Location | |
| Category | Conferences - Seminars |
Abstract : Direct numerical simulation of spatially developing pipe flow is performed from laminar through transition to fully-developed turbulence.
The pipe is 250R long, and a number of different finite disturbances are imposed at the inlet on either the parabolic or the plug laminar velocity profile.
Under these special inlet disturbances, isolated Lambda vortices, hairpin packets, infant turbulent spot, mature turbulent spot,
and hairpin forest may occur naturally and sequentially. It is also found that energy norm in the flow downstream of such disturbance
can grow exponentially with axial distance
The pipe is 250R long, and a number of different finite disturbances are imposed at the inlet on either the parabolic or the plug laminar velocity profile.
Under these special inlet disturbances, isolated Lambda vortices, hairpin packets, infant turbulent spot, mature turbulent spot,
and hairpin forest may occur naturally and sequentially. It is also found that energy norm in the flow downstream of such disturbance
can grow exponentially with axial distance
Practical information
- General public
- Free
Organizer
- IGM
Contact
- Géraldine Palaj