minDistanceToWall (1d, 2d, 3d)¶

Calculates the shortest distance from the grid boundary to each cell in the domain.

Parameters¶

entity (string): The name of the grid boundary
computeUt (boolean): Specify whether to compute the shear velocity. If true, out vector must be of size 2.

Data¶

in (string vector of 3, required)

input 1 is fluid vector
input 2 is gradient of the velocity-magnitude
input 3 is laminar viscosity

out (string vector, required)

out is a single vector consisting of the shortest distance in component-1. If computeUt=true, shear velocity will be stored in component-2.

Example¶

<Updater computeDistancesToPlate>
  kind = minDistanceToWall2d
  onGrid = domain
  entity = plate
  computeUt = true
  in = [q, gradU, visc]
  out = [distance]
</Updater>