Engine for brain development: Similarity between engine and brain

Observations of the development of the human brain show the bones of the skull become increasingly larger over the neck, and a lot of soup like fluid for generating brain cells enters the skull from the body. This process is essentially similar to the intake process of an internal combustion engine and also that the soup for generating flexible brain cells can be essentially modeled by using the Navier-Stokes equation. The flow of air during the intake process of a piston engine and fluid flow in the brain, including water as the main component, can be approximated as being incompressible. In this report, we will examine the spatial patterns of convexoconcave of brain and blood vessels in details.