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