Computation of sensitivity derivatives of Navier-Stokes equations using complex variables
A method based on complex variables for obtaining sensitivity derivatives in conjuction with a Navier-Stokes flow code is described. The complex variable approach is found to be efficient and accurate and does not suffer from step-size related truncation errors. The resulting sensitivity derivatives are calibrated by comparisons with finite-difference solutions and experimental data for several aerodynamic configurations of practical interest. The methodology is straightforward and can be applied to an existing code with moderate effort. (C) 2000 Elsevier Science Ltd. All rights reserved.
sensitivity derivatives navier-stokes complex variables computational fluid dynamics