FLUID IN A PIPE HAVING NO CHANGE IN PROFILE WITH CHANGE IN LENGTH OF PIPE?WHAT IS TYPE OF FLOW?

TO ANSWER THIS WE HAVE TO KNOW BASICS ABOUT FLUIDS ,LET US THESE FIRST
LAMINAR FLOW
STEADY FLOW
TURBULENT FLOW
TRANSITIONAL FLOW

IF A FLUID MOVING SLOWLY WILL GET WELL DEFINED STREAK LINE CALLED LAMINAR FLOW

IF A FLUID MOVING FASTER WILL GET FLUCTUATIONS ,AND IRREGULAR IN STRAK LINE IS NOTHING BUT TURBULENT FLOW

IF A FLUID MOVING WITH INTERMEDIATE VELOCITY WILL GET FLUID FLUCTUATIONS EVEN THE FIGURE IS WELL DEFINED IS NOTHING BUT TRANSITIONAL FLOW

A STEADY FLOW IS THAT CHANGE IN PRESSURE ,VELOCITY,CROSS-SECTION MAY DIFFER FROM POINT TO POINT BUT DOES NOT CHANGE WITH TIME.
  NOW ANS IS LAMINAR FLOW////