COSAL: A blackbox compressible stability analysis code for transition prediction in threedimensional boundary layers
Abstract
A fast computer code COSAL for transition prediction in three dimensional boundary layers using compressible stability analysis is described. The compressible stability eigenvalue problem is solved using a finite difference method, and the code is a black box in the sense that no guess of the eigenvalue is required from the user. Several optimization procedures were incorporated into COSAL to calculate integrated growth rates (N factor) for transition correlation for swept and tapered laminar flow control wings using the well known e to the Nth power method. A user's guide to the program is provided.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 May 1982
 Bibcode:
 1982STIN...8428002M
 Keywords:

 Aircraft Design;
 Boundary Layer Stability;
 Boundary Layer Transition;
 Compressible Boundary Layer;
 Computer Programs;
 Swept Wings;
 Three Dimensional Boundary Layer;
 User Manuals (Computer Programs);
 Computer Aided Design;
 Differential Equations;
 Eigenvalues;
 Finite Difference Theory;
 Input/Output Routines;
 Laminar Boundary Layer;
 Laminar Flow;
 NavierStokes Equation;
 Optimization;
 Transition Flow;
 Turbulent Flow;
 Fluid Mechanics and Heat Transfer