Analysis of Transonic Swept Wings Using Asymptotic and Other Numerical Methods.
Abstract
Asymptotic theories for high-aspect-ratio wings in transonic flow developed recently show that the three-dimensional (3-D) mixed-flow calculations may be reduced to solving a set of 2-D problems at each span station. For wings with surfaces generated from a single airfoil shape, local similutude exists in the 3-D flow structure, permitting the problems to be solved once for all span stations. This paper reviews this theoretical development. The essential elements in the theory will be identified. Their relationship to the lifting-line theory and related classical methods are discussed. Examples of similarity solutions are demonstrated for high subcritical and slightly super-critical component flows; comparisons with relaxation solutions to a full potential equation are made. The study also examines the adequacy of the existing full-potential computer code. Outstanding problems remaining for subsequent development are discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1980
- Accession Number
- ADA085587
Entities
People
- H. K. Cheng
- R. Chow
- Roger K. Smith
- S. Y. Meng
Organizations
- University of Southern California