[mhasif02]

Hi all,

I need to find Ct value based on a table (example below):

tableA.dat
surgeAmplitude(m) Ct
0.10 0.58
0.35 0.35
0.52 0.79
0.79 0.91

I'm using OF 4.1 and I want to code something like:

newTurbineForce.C

// * * * * * * * Member Functions * * * * * * * //

...

{
// position of the turbine hub (vector (x,y,z)) at every timestep
turbinePosition = motion.transform(hubPosition_);

// calculate surgeAmplitude (m)
scalar surgeAmp = turbinePosition.x() - hubPosition_.x();

// if surgeAmp = 0.1 {
// lookup tableA.dat
// Ct = 0.58}
// elseif surgeAmp = 0.35 {
// lookup tableA.dat
// Ct = 0.35}
// elseif surgeAmp = 0.2 {
// lookup tableA.dat // need to do some interpolation
// Ct = interpolated value}
}

I am quite new in coding using OF. I searched the forum and found some thread on lookup tables based on timestep. However, in my case, I only want to lookup the tableA.dat based on the surgeAmp value, not timestep. Can someone help/guide me with this? Or have anyone done something similar?

Regards,
Mohamad