Well, my first part here is the docs exlanation:
Create an Ocean wake
To place a Wake fluid in an Ocean:
Create an Ocean by selecting Fluid Effects > Ocean > Create Ocean.
An Ocean appears in your scene view.
Create a wake by selecting Fluid Effects > Ocean > Create Wake > .
The Create Ocean Wake options window appears.
Set the wake options. See Fluid Effects > Ocean > Create Wake.
Do one of the following:
Click Create Ocean Wake to place a Wake fluid container in the current Ocean.
The Create Ocean Wake options window closes.
Click Apply to place a Wake fluid container in the current Ocean.
The Create Ocean Wake options window remains open.
Click Close to disregard any changes made to the Create Ocean Wake options, and close the Create Ocean Wake options window.
Set the Wake attributes.
Seems pretty straightforward, but What type of geometry are you using to effect either the ocean, or the wake fluid?
Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS