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Can anybody explain the implementation of ADI?

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Old   July 9, 2014, 03:41
Question Can anybody explain the implementation of ADI?
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Mehdi
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Hi friends,

I'm trying to use ADI method in my code (the code uses SIMPLE method by two steps of explicit and implicit) but I do understand it.
Why do I need to apply ADI? because my code is slow and found out that the bottleneck of my code is explicit calculation.

What is explicit section:
This section easily calculates velocities except pressure which would calculated at implicit part and update velocities. The main loops for explicit section is:



Code:
For (i=0, i<nx , i++)
{
For (j=0, j<ny , j++)
{
Ubar=  ...  // calculation of velocities without pressure
Vbar=  ...  // calculation of velocities without pressure
}
}
How can I use other algorithm to improve my code calculation speed ?
Any suggestions ?
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Old   August 7, 2014, 18:04
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Dont loose your time with ADI. It is oldfashion.
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