- #1
shevir1
- 18
- 0
Hi all I am conducting a fluid analysis on water flowing through a subsea pipe.
Having used navier stokes equation, i derived the equation for velocity in the r-direction (using cylindrical coordinates.
But when initially solving the energy equation to determine temperature distribution I have used the cartesian coordinates, x & y
From the picture I have attached am I correct in proceeding to solve the energy equation, if I were to just differentiate my velocity equation result and substitute back into the energy equation?
From my knowledge the Y direction in cartesian corresponds with the R direction in the cyclindrical hence my reasoning for proceeding this way.
Having used navier stokes equation, i derived the equation for velocity in the r-direction (using cylindrical coordinates.
But when initially solving the energy equation to determine temperature distribution I have used the cartesian coordinates, x & y
From the picture I have attached am I correct in proceeding to solve the energy equation, if I were to just differentiate my velocity equation result and substitute back into the energy equation?
From my knowledge the Y direction in cartesian corresponds with the R direction in the cyclindrical hence my reasoning for proceeding this way.