Abstract
The dynamics of the pressure fluctuations are analyzed using a relatively large-scale direct simulation of a turbulent boundary layer. Proper turbulent inflow conditions, key in boundary layers, are generated by an auxiliary simulation at lower resolution and Reynolds number. Special emphasis is put on the contamination of the pressure statistics due to the inflow boundary conditions. It is shown that extraneous pressure fluctuations are due to the variations in the mass-flow rate at the inflow, and a remedy is proposed.
Original language | English |
---|---|
Publication status | Published - 2012 |
Event | 7th International Conference on Computational Fluid Dynamics, ICCFD 2012 - Big Island, United States Duration: 9 Jul 2012 → 13 Jul 2012 |
Conference
Conference | 7th International Conference on Computational Fluid Dynamics, ICCFD 2012 |
---|---|
Country/Territory | United States |
City | Big Island |
Period | 9/07/12 → 13/07/12 |
Bibliographical note
Publisher Copyright:© 2012 7th International Conference on Computational Fluid Dynamics, ICCFD 2012. All rights reserved.
Funding
This work was supported by the CICYT grant TRA2009-11498, by the ERC grant ERC-2010.AdG-20100224, and by computational resources from the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under contract DE-AC02-06CH11357. AGG was supported by the Spanish Ministry of Education and Science under the Juan de la Cierva program, and JAS by an FPU fellowship from the U. Politécnica of Madrid.
Funders | Funder number |
---|---|
U. Politécnica of Madrid | |
U.S. Department of Energy | DE-AC02-06CH11357 |
Office of Science | |
Argonne National Laboratory | |
Ministerio de Educación, Cultura y Deporte | |
Comisión Interministerial de Ciencia y Tecnología | ERC-2010, TRA2009-11498, AdG-20100224 |
Keywords
- Direct numerical simulation
- Pressure fluctuations
- Turbulent boundary layers