Time-Dependent Finite-Difference Simulation of Unsteady Interactive Flows,
Abstract
The solution of the time-dependent, Reynolds-averaged, Navier Stokes equations for unsteady, interacting flows by finite-difference algorithms is discussed. Specific examples include 1) unsteady transonic flow over a thick biconvex airfoil, 2) determination of buffet boundaries for a transonic lifting airfoil, 3) the simulation of aileron buzz and 4) dynamic stall. Algorithms considered include explicit methods, mixed (or hybrid) methods, and fully implicit methods. Consideration of time scales for computational stability, computational accuracy, and physical accuracy and the use of time-dependent adaptive meshing to realize computational efficiency are also discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1982
- Accession Number
- ADP001929
Entities
People
- George S. Diewert
- Harry E. Bailey
Organizations
- Ames Research Center