IDENTIFICATION AND QUANTIFICATION IN THE ROLE OF TURBULENCE IN AIRCRAFT/SHIP AERODYNAMICS
Abstract
The proposed effort seeks to advance understanding of the unsteady flow environment in a ship airwake and the impact this unsteadiness has on the aerodynamic performance of a wing/airfoil. The effort will combine wind tunnel experiments with computations ~ the computations will be specifically aligned with the experimental configurations. The computational effort will explore a variety of simulation fidelities looking for accuracy and speed in the simulation. The impact of large-scale turbulent motions from bluff-bodies will initially be explored. Subsequent tasks will include freestream turbulence representative of an atmospheric boundary layer upstream of the bluff body. Experimental measurements and simulations will be time accurate in an effort to understand the important and relevant turbulent interactions. A significant component of this effort will be devoted to understanding the fidelity of simulation required to accurately capture the flow field unsteadiness and the associated sensitivity of the simulation accuracy to fidelity. Here comparisons between LES and hybrid LES approaches will be made. Because this work will be made a sub-full-scale, an effort will be made to understand how the results scale to full-size.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 23, 2016
- Source ID
- N000141612731
Entities
People
- Marilyn Smith
Organizations
- Georgia Tech Research Corporation
- Office of Naval Research
- United States Navy