TCELL_FLOW_MOVIE
Animation of Flow Solutions in a T-Cell

TCELL_FLOW_MOVIE is a set of MATLAB routines for animating the pressure or velocity data in solutions of the incompressible parameterized flow problem in a 2D T-cell.

Related Data and Programs:

FREE_FEM_NAVIER_STOKES is a MATLAB program for solving the steady incompressible Navier Stokes equations on an arbitrary triangulated region, using the finite element method.

A set of solutions was generated by the TCELL program for solving a time dependent Navier Stokes problem.

The set of solutions is stored in the TCELL dataset directory.

The movie created by this script is available in the MP4 directory.

VELOCITY_ARROWS_GRID is a MATLAB program which reads files of node and velocity data, and, using interpolation, creates a vector plot with arrows place on a uniform grid of the user's specification.

Source Code:

• tcell_flow_png.m, is a MATLAB M script file which reads EACH velocity file, displaying the normalized or unnormalized field, and making a PNG file of each image for assembly into an animation.
• tcell_flow_movie.m, is a MATLAB M script file which can read the XY coordinate file and all the time dependent velocity files, and create an animation. It displays either the velocity or direction field, depending on the internal value of the logical parameter normalized. To keep this script happy, the "#" comment lines were removed from the XY file.
• thin_index.m, is a MATLAB M file used by TCELL_FLOW_MOVIE, which "thins out" the data. Otherwise, there are too many little arrows to see anything.
• ch_is_digit.m, is TRUE if a character represents a digit.
• digit_inc.m, increments a character that represents a digit.
• file_name_inc.m, is used to generate unique names for the succession of PNG files.
• s_len_trim.m, returns the length of a string to the last nonblank.

Examples and Tests:

• xy.txt, the XY coordinates associated with the nodes.
• elements.txt, a grouping of the nodes into 6 node quadratic finite elements.
• steady.txt, the steady state velocity field.

You can go up one level to the MATLAB source codes.