Browsing articles in "Aerospace Engineering"

Calculate y+ – Estimate initial cell height

Jan 16, 2012   //   by Mark Bell   //   Aerospace Engineering  //  No Comments

Knowing how to calculate y+ is very important when using turbulence modelling.  To obtain an initial cell height above the wall (aerofoil surface, for example), one can calculate an approximate height using the following method.  The following assumptions are made,

  • The gas is ideal
  • A zero-pressure gradient is assumed
The non-dimensional wall distance, y+ is given by, Read more >>

What is Aerodynamics?

Mar 3, 2011   //   by Mark Bell   //   Aerospace Engineering  //  1 Comment

Aerodynamics is a very broad subject in aerospace engineering, which generally focuses on the movement of fluid.  In aerodynamics, the word, fluid, means liquid or gas.  There is no hard and fast definition of aerodynamics, but rather the generalisation that aerodynamicists are fluid flow engineers. Read more >>