The poynting vector is that one which represents the directional energy flux density of the electromagnetic field.

No, the Poynting vector does not point radially outward in the volume between the plates of a parallel plate capacitor. The Poynting vector represents the direction and flow of electromagnetic energy, and in the case of a static electric field between the plates, the Poynting vector is zero within the volume between the plates.

induction effect

For a parallel plate capacitor is The poynting vector points everywhere radially outward of the volume between plates.

A vector already points, without needing an extra. I wonder if you mean "Poynting Vector" which shows the direction and magnitude of power flow in radiation.