- #1

- 828

- 13

## Homework Statement

## Homework Equations

**u=a+ b(x-c)^2**

**We have two boundary conditions at x=0, u=u(entrance) and x=L, u=u(exit)**

**Source: Fluid Mechanics by Çengel/Cimbala**

## The Attempt at a Solution

**I cannot understand the parabolic equation in the x-direction.**