Central difference approximation

Thread starter hermano
Start date Jan 4, 2011
Tags

Approximation Difference

AI Thread Summary

The discussion revolves around finding the expressions for the central difference approximation of the first and second derivatives on a non-uniform grid. It is suggested that the derivation for non-uniform grids should resemble that of uniform grids. Participants are encouraged to share their differential equations for further assistance. The conversation highlights the need for clarity in applying central difference methods in varying grid scenarios. Overall, the focus is on deriving accurate approximations for non-uniform grids.

Jan 4, 2011

hermano

Hi,

Where can I find the expression of the central difference approximation of the first and second derrivative (spatial) for a NON uniform grid?

Physics news on Phys.org

Jan 6, 2011

mike133

Hi,
I think the derivation in the case of non uniform grid should be similar as in the case of the uniform grid.

Write down your differential equation, I will try to help you.

Thread 'Linear generator prototype'

i want to just test a linear generator with galvanometer , the magnet is N28 and the wire (Cu) is of 0.6mm thikness and 10m long , but galvanometer dont show anthing , The core is PLA material (3d printed) The magnet size if 28mm * 10mm * 5mm

View full post »

Thread 'Mechanism of Energy Conservation in Zero-Amplitude Sum of EM Waveforms'

Assume that this is a case where by sheer coincidence, two sources of coherent single-frequency EM wave pulses with equal duration are both fired in opposing directions, with both carrying the same frequency and amplitude and orientation. These two waves meet head-on while moving in opposing directions, and their phases are precisely offset by 180 degrees so that each trough of one wave meets with the crest of the other. This should be true for both the electric and magnetic components of...

View full post »