Determining the Smallest Cell Size in the Mesh

- December 19, 2018 at 1:43 pm
  
  moe9423
  Subscriber
  
  Hello,
  
  Hope you are all doing well.
  
  I am doing a transient laminar analysis to simulate pulsatile blood flow
  
  My fluid domain is a 2d rectangle with the following dimensions: 3.5 cm (length) & 3 mm (diameter) and the mesh is shown below.
  
  I am trying to calculate the time step size using the courant number that's why I need to determine the smallest cell size in my mesh.
  
  Using fluent I tried 'check' mesh and by taking the square root of min area or cubic root of min volume I get cell size equal to 0.0262 m and 7.829*e-3 m respectively which in both cases sounds unreasonable given that my domain has a diameter of 3e-3.
  
  Does anyone know how can I determine the smallest cell size in my domain?
  
  Thank you in advance
- December 19, 2018 at 2:51 pm
  
  DrAmine
  Ansys Employee
  
  As it is 2d the volume will be made by reference depth. Default is one meter if you did not change it under reference values.
- December 19, 2018 at 6:26 pm
  
  moe9423
  Subscriber
  
  This makes a lot of sense now.
  
  Thank you for your help I appreciate it.