A Note on Adaptive Wind Tunnels with Imperfect Control,
Abstract
An earlier study of the convergence of the adaptive-wall wind-tunnel scheme for a sinusoidal model in a two-dimensional tunnel is extended to the case where ideal matching at the interface cannot be achieved. It is assumed that, in place of the desired sinusoidal correction, a correction including an extraneous harmonic always occurs. Two different assumptions are made regarding the fitting of this distorted sinusoid to the observed error signal. It is found that the iteration converges for the same range of relaxation constants as for the ideal case, but that unconfined flow is not achieved. For reasonable numerical values, the iteration nevertheless appears to make substantial improvement in a flow involving boundary interference. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1982
- Accession Number
- ADP000323
Entities
People
- William R. Sears
Organizations
- University of Arizona