Unsteady Transonic Flows: Time-Linearized Calculations,
Abstract
An accurate and efficient method of computing unsteady transonic flow is described. The flow is linearized about an experimentally measured or numerically calculated steady state, as represented by a given pressure distribution. For a given mode of motion, the amplitudes and phase lags of the lift and moment coefficients at a given reduced frequency are found by superposition from an indicial response. The computational effort is reduced by treating shock waves as discontinuities, and by applying the correct linear far-field behavior. A novel method of modeling the indicial response provides an analytical formulas for the dependence of the amplitude and phase lag on the reduced frequency. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1980
- Accession Number
- ADA116264
Entities
People
- A. Richard Seebass
- K.-y. Fung
Organizations
- University of Arizona