Theory - Tait equation of state?


I read through the documentation of DualSPHysics and I see a line which says:

Weakly compressible approach using Tait’s equation of state.

And can someone explain why this is attributed to Tait? Because by reading Wikipedia on SPH method, I found that actually we are using Cole's equation of state:

Could someone explain why a lot of SPH theory is attributing it to Tait?

Kind regards


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