- **Main CFD Forum**
(*http://www.cfd-online.com/Forums/main/*)

- - **Unsteady Bounday layer**
(*http://www.cfd-online.com/Forums/main/83187-unsteady-bounday-layer.html*)

Unsteady Bounday layerI'm trying to solve a problem where I have impulsively started boundary flow past a circlar cylinder.
If we just consider the top half of the cylinder, then an ideal co-ordinate system is one where the x-coordinate represents the distance along the surface of the cylinder, and the y-coordinate is the distance from the cylinder. Now, since this flow is unsteady, I expect that the thickness of the boundary layer changes with time. My question is, does the thickness increase or decrease with time? This is a very new problem to me, but my intuition tells me that the boundary layer gets narrower as the flow progresses. Is this right? |

All times are GMT -4. The time now is 19:54. |