dissip2dord2
algorithm
- calculates turbulent dissipation rate of a 2D velocity field
- using 2nd order scheme for gradients
- see for example Taylor (1935)
syntax
[tdiss]=dissip2dord2(UX,UY,st,nu)
example for input
[tdiss]=dissip2dord2(x_velocity,y_velocity,0.00004)
input arguments
| Name | description |
|---|---|
| UX | square matrix; x_component of velocity |
| UY | square matrix; y_component of velocity |
| step | width of the grid,distance defining the gradients |
| nu | cinematic viscosity; optional input argument if there is not an input for nu the program takes 1.57 e-05 (air) by default |
output arguments
| Name | description |
|---|---|
| tdiss | dissipation rate of turbulent kinetic energy |
matlab tools required
- gradient