Thursday, May 28, 2009

Displacement thickness

Displacement thickness is a measure of boundary layer thickness. Displacement thickness is defined as the distance by which the boundary layer should be displaced to compensate for the reduction in flow rate on account of boundary layer formation. The concept of displacement thickness finds its application in the design of ducts and wind tunnels.


  1. why boundary layer not forms if the fluid is liquid nytrogen

  2. Now some of you maybe be wondering why use PI? Well because Cylinders are round and we are figuring out a volume, PI is used in volume so it is used to figure out engine displacement which is volume. As for those wondering why the 318 LA in the example, well because the SBC 350 is to common.