1. The problem statement, all variables and given/known data The following stream function holds for a certain flow of water at 20 C. psi = 4y - (y^3)/3. Is this flow fully developed? 2. Relevant equations psi = 4y - (y^3)/3. 3. The attempt at a solution How am i suppose to tell if a flow is fully developed or not from the stream function? Direct me to what should i study to find the answer.