- #1
VooDoo
- 59
- 0
Hey guys,
The streamlines just outside a boundary layer are pushed away from the wall by the displacement thickness [tex]\delta[/tex]* and I understand that;
[tex]\delta[/tex]*=[tex]\int^{\infty}_{0}[/tex](1-[tex]\frac{u}{U}[/tex])dy
Now this is for flow over a plate with length x=4m. At x=0 is the leading edge and at x=4 [tex]\delta[/tex] = [tex]\delta^{b}[/tex]
Now been told to find the equation of the streamline i.e. y=y(x) that touches the boundary layer at x=4 (and y = [tex]\delta^{b}[/tex] I guess).
I know I have to calculate the boundary layer displacement thickness...but I am unsure of how to do that and what I should do after that.
The streamlines just outside a boundary layer are pushed away from the wall by the displacement thickness [tex]\delta[/tex]* and I understand that;
[tex]\delta[/tex]*=[tex]\int^{\infty}_{0}[/tex](1-[tex]\frac{u}{U}[/tex])dy
Now this is for flow over a plate with length x=4m. At x=0 is the leading edge and at x=4 [tex]\delta[/tex] = [tex]\delta^{b}[/tex]
Now been told to find the equation of the streamline i.e. y=y(x) that touches the boundary layer at x=4 (and y = [tex]\delta^{b}[/tex] I guess).
I know I have to calculate the boundary layer displacement thickness...but I am unsure of how to do that and what I should do after that.