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Mat Hunt


UCL

Last seen: 8 months ago |  Active since 2023

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Applied mathematician Professional Interests: fluid dynamics, waves

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Surf from a numerical array
Suppose I solve a PDE and obtain a solution in 2D say . If I do surf(u) I get a picture of the whole thing. Can I change the val...

9 months ago | 2 answers | 0

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Tolerance of ODE15s becomes too small
I want to solve the equations: with boundary conditions , the initial conditions are . I decided to solve this using the fin...

10 months ago | 0 answers | 0

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Question


Lagrangian grid for PDE toolbox
Suppose I am doing some elasticity problem in 2D, and I have a deformable medium. Can I use the MATLAB PDE toolbox to not only f...

1 year ago | 0 answers | 0

0

answers

Question


I need to speed up my code
I have code that works perfectly fine, but is very slow. I need to understand how to speed it up. I've run the profiler and ther...

1 year ago | 0 answers | 0

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Answered
Solve 1D Burgers Equation via Semi-Implicit Adams-Bashforth/Crank-Nicolson Scheme
Make sure your vaiue of D*dt/dx^2 isn't too large, ideally, it should be around 1.

1 year ago | 0

Answered
Using the backward Euler and upwinding to solve the viscous Burgers equation
This issue was the size of b, I reduced this and it worked perfectly. I find this odd as backward Euler is touted to be uncondit...

1 year ago | 0

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Question


Using the backward Euler and upwinding to solve the viscous Burgers equation
I wish to solve the following partial differential equation: I have had some success using the backward Euler method for othe...

1 year ago | 2 answers | 0

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answers