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KatzPlotkin

This is an archive of the fixed-format Fortran programs provided by Joseph Katz and Allen Plotkin in their book titled Low-Speed Aerodynamics. The authors of the book reserve all rights to the code and these programs are transcribed verbatim for ease of use solely for educational purposes.

Directory structure

Each pXX directory contains a program.
Inside each directory, the source code is named pXX.f and an example output is provided with the name pXX.log.
A Makefile (tested on Linux) is also provided.

Usage

Compile the code using either the provided Makefile or using the command:

gfortran p14.f -o p14.out

You can then run it using

./p14.out

List of programs

Code Program details Boundary Condition 2D/3D
01 Grid generator for van de Vooren airfoil shapes. Programs 3-11 use this as input. -- --
02 Discrete vortex, thin wing method Neumann 2D
03 Constant strength source method Neumann 2D
04 Constant strength doublet method Neumann 2D
05 Constant strength vortex method Neumann 2D
06 Linear strength source method Neumann 2D
07 Linear strength vortex method Neumann 2D
08 Constant strength doublet method Dirichlet 2D
09 Constant strength source/doublet method Dirichlet 2D
10 Linear strength doublet method Dirichlet 2D
11 Quadratic strength doublet method Dirichlet 2D
12 Constant strength source/doublet element -- 3D
13 Vortex lattice method for rectilinear lifting surfaces (with ground effect) -- 3D
14 Constant strength sources and doublets Dirichlet 3D
15 Sudden acceleration of a flat plate at angle of attack (using a single lumped vortex element) -- 2D
16 Unsteady motion of a thin rectangular lifting surface (Upgrade of program 13) 3D