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COREL and W12SC3 are two computer programs useful in the aerodynamic
design and analysis of wings for supersonic maneuvering. Both programs
use the Super Critical Conical Camber (SC3) concept, in which high
supersonic lift coefficients are obtained by controlling cross flow
development. COREL (Conical Relaxation) solves the nonlinear full potential
equation for a spanwise section of a wing in the crossflow plane and corrects
the result for any nonconical geometry. W12SC3 applies linear theory panel
methods to compute solutions for a wing-body configuration. The programs
are not restricted to supersonic maneuvering cases, but are useful for many
design, analysis, and optimization applications.*

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COREL computes the mixed subsonic/supersonic crossflow that develops on
supersonic wings with high lift coefficients at Mach numbers normal to
shock waves of 1.3 or less. The bow and crossflow shocks are captured
as part of the solution. The initial aerodynamic solution is produced on
a crude grid and is then reiterated. A finer mesh is then mapped, keeping
the bow shock within the boundary of the new computed crossflow. The input
geometry can be specifically defined or calculated in COREL using Craidon
bicubic spline patches.*

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W12SC3 combines source and vortex panel singularity distributions for
calculating the linear theory estimate of the configuration aerodynamics.
The user can specify Woodward II calculations for arbitrary body models or
Woodward I calculations for an interference shell that approximates actual
body shape. The Carlson correction for supersonic linear theory wing
calculations is applied at wing control points. If desired, COREL will produce
conical panel pressure data for further processing by W12SC3. W12SC3 can
perform the following aerodynamic functions: 1) full analysis, 2) full design,
3) full optimization, 4) mixed design-analysis, and 5) mixed design-optimization.
Results from W12SC3 include wing camber distribution, surface velocities,
pressure coefficients and drag.
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This program was released by NASA through COSMIC as LAR-13239. The italicized text above is from the official NASA release.

- Go to the page of references for the Corel and W12SC3 programs.
- Download w12sc3.zip, containing the original source code, the source code converted to modern Fortran, and a test case from the reference document, NASA CR-3676.