Reputation
215
Top tag
Next privilege 250 Rep.
View close votes
Badges
1 10
Newest
 Yearling
Impact
~1k people reached

  • 0 posts edited
  • 0 helpful flags
  • 6 votes cast
Mar
4
answered How do i correctly go from a two variable function to a function of difference?
Feb
25
comment Polar coordinates for vector difference in $\mathbb{R}^2$
up up up up up hp
Feb
25
awarded  Tumbleweed
Feb
18
revised Polar coordinates for vector difference in $\mathbb{R}^2$
edited body
Feb
18
asked Polar coordinates for vector difference in $\mathbb{R}^2$
Feb
4
revised Vector Laplace equation with constraint
added 343 characters in body
Feb
4
revised Vector Laplace equation with constraint
edited tags
Feb
4
asked Vector Laplace equation with constraint
Jan
29
awarded  Curious
Dec
16
awarded  Caucus
Dec
13
comment Finite differences and conservation law
I edited the question to avoid getting too much into the detail of my specific problem, I hope that increases the interest.
Dec
13
comment Finite differences and conservation law
I edited the question to avoid getting too much into the detail of my specific problem, I hope that rises the interest.
Dec
13
revised Finite differences and conservation law
deleted 464 characters in body
Dec
13
comment Finite differences and conservation law
It seems to me that here the stiff term will have trouble, because there is no implicit part in your scheme.
Dec
12
comment Finite differences and conservation law
I tried to impose conservation on the whole r.h.s, by discretising it in conserved form, i.e. as a first derivative, but that gives me an unstable thing (I see sawtooth modes entering the grid)
Dec
12
revised Finite differences and conservation law
added 440 characters in body
Dec
12
asked Finite differences and conservation law
Jul
8
comment Space-dependent diffusivity and finite-differences
Found the mistake, in the explicit part I used $u_{j+1}-u_j$ instead of $[u_{j+1}-u_{j-1}]/2$!
Jul
8
comment Space-dependent diffusivity and finite-differences
Usually, to test it in the simplest case, I use $D(x)=x$ or $D(x)=1-x$, to see how it behaves going to both boundaries.
Jul
8
asked Space-dependent diffusivity and finite-differences