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Collection of PDE animations

Nasser M. Abbasi

May 28, 2018  Compiled on May 28, 2018 at 3:22am
1 Heat PDE
 1.1 Homogeneous Heat PDE in 1D. bounded domain. (No source term)
  1.1.1 Pure diffusion. Both ends at zero temperature
  1.1.2 Pure diffusion. Left end at non zero temperature, right end zero temperature
  1.1.3 Pure diffusion. Both ends insulated
  1.1.4 Pure diffusion. Left end insulated, right end at non-zero temperature
  1.1.5 Diffusion-Reaction. Case when both ends insulated
  1.1.6 Pure diffusion. Left end nonhomogeneous time dependent Neumann, right end at zero temperature
  1.1.7 Pure diffusion. Left end nonhomogeneous and time dependent Dirichlet, right end at zero temperature
  1.1.8 Pure diffusion. Both ends at fixed non-zero temperature (not time dependent)
  1.1.9 Pure diffusion. Both ends at temperature that is time dependent
  1.1.10 Diffusion-Reaction. Both ends at zero temperature, no source. reaction term is xu (x,t)
  1.1.11 Diffusion-Convection. Both ends at zero temperature, no source. (also called advection)
 1.2 Nonhomogeneous heat PDE in 1D bounded domain. (Source term present)
  1.2.1 Both ends at temperature that depends on time. Source term depends on x only
  1.2.2 Both ends at temperature that depends on time. Source term depends on x and t
  1.2.3 Both ends at zero temperature. Source term depends on x only
  1.2.4 Both ends at zero temperature. Source term depends on x and t
  1.2.5 Left end at fixed temperature, right end zero temperature. Source term depends on x and t.
  1.2.6 Both ends at fixed temperature (not time dependent). Source term depends on x only
  1.2.7 Both ends at fixed temperature. Source term depends on x and t
 1.3 Homogeneous Heat PDE in 1D, Semi-infinite domain, No source. Laplace Transform method
  1.3.1 Left end at zero temperature, No source term, zero initial conditions
  1.3.2 Left end at temperature that depends on time. No source term, zero initial conditions
 1.4 Heat PDE in 2D
  1.4.1 Heat PDE in 2D inside a Disk, zero temperature at boundary (circumference) of disk.
  1.4.2 Heat PDE in 2D inside a Disk, insulated boundary conditions
2 Wave PDE
 2.1 Homogeneous Wave PDE in 1D on finite domain (plugged string) series solutions
  2.1.1 Both ends of string fixed, initial position zero, Fourier series solution
  2.1.2 Both ends of string fixed, initial velocity zero, Fourier series solution
  2.1.3 Both ends of string fixed, initial velocity zero, d’Alembert solution
  2.1.4 Left end fixed, right end free, initial velocity zero, Fourier series solution
  2.1.5 Left end fixed, right end free. Initial velocity zero. Damping present.
  2.1.6 Both ends fixed. Initial velocity zero. Dispersion term present.
  2.1.7 Both ends fixed. Initial velocity zero. Telegraphy PDE (dispersion and decay)
 2.2 Homogeneous Wave PDE in 1D, semi-infinite domain, no source
  2.2.1 Left end free, initial velocity zero
  2.2.2 Left end fixed, initial velocity zero
 2.3 Wave PDE in 1D, infinite domain, D’Alembert solution
  2.3.1 Initial velocity zero case
 2.4 Homogeneous Wave PDE in 2D. No source
  2.4.1 Rectangular membrane. Fixed on all edges
  2.4.2 circular membrane, no circular symmetry, example 1
  2.4.3 circular membrane, no circular symmetry, specific problem from exam
  2.4.4 circular membrane, with circular symmetry
 2.5 Solitons wave animation (non-linear wave PDE)
 2.6 Wave PDE with inhomogeneous boundary conditions, 1D (string)
3 Laplace and Poisson PDE
 3.1 Laplace PDE inside disk
 3.2 Laplace PDE outside disk
 3.3 Laplace PDE inside square. 3 edges homogeneous boundary conditions.
 3.4 Poisson PDE, Cartesian coordinates, source term depends on y
4 Burger’s PDE
 4.1 Example 1
5 Misc. PDE’s
 5.1 FitzHugh-Nagumo in 2D
  5.1.1 Example 1
  5.1.2 Example 2
6 Appendix
 6.1 Summary table
 6.2 Using Mathematica to obtain the eigenvalues and eigenfunctions for heat PDE in 1D
  6.2.1 u(0) = 0,u(L ) = 0
  6.2.2  ′        ′
u(0) = 0,u (L ) = 0
  6.2.3 u′(0) = 0,u(L) = 0
  6.2.4 u(0) = 0,u′(L) = 0
  6.2.5 u(0) = 0,u (L)+ u ′(L) = 0
  6.2.6 u(0)+ u ′(0) = 0,u′(L ) = 0
  6.2.7 u(− L ) = 0,u (L) = 0