Boundary Layer Establishment and Separation: Discovering the Dynamic Scales
Abstract
The objective is to analyse the establishment and separation-reattachment sequences of the boundary layer in a canonical geometry. During the first phase, we will research the prime parameters influencing the establishment and detachment of the boundary layer in a flat plate exposed to pressure gradients, using high-fidelity URANS simulations. A previous research of our team demonstrated the major role of the Reynolds number, surpassing the temperature effects on the establishment of the momentum boundary layer. In the second phase, we will use Direct Navier Stokes simulations (Open Foam) to study the dynamics of the boundary layer, including the entire development sequence from detachment to reattachment. Emphasis will be set on the effects of the upstream flow conditions, such as variation of the local static pressure. High fidelity simulations will also be performed at this stage on the full conjugate problem to unveil the physics of the thermal boundary layer, which should offer guidelines to flow control and heat exchangers operating in transient conditions. In a final stage, we aim to perform an assessment of the numerical results using experimental data, with tests performed at the Zucrow labs, at Purdue University.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 23, 2016
- Source ID
- FA95501610120
Entities
People
- Guillermo Paniagua
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- von Kármán Institute for Fluid Dynamics