From: Generalization enhancement of artificial neural network for turbulence closure by feature selection
Feature | Description | Denotation |
---|---|---|
q1-q4 | Velocity gradient | ux, uy, vx, vy |
q5 | Projection of free stream to normal direction of streamline | sgn(y)[−v + u tan(α)] |
q6-q7 | Pressure gradient | px, py |
q8 | Redefined entropy | S ' /Ma2 |
q9 | Pressure gradient along streamline | \( {u}_i\frac{\partial p}{\partial {x}_i} \) |
q10 | Eddy viscosity expression for the inner layer | lmix2w |
q11 | Velocity magnitude | \( \sqrt{u^2+{v}^2} \) |
q12 | Velocity direction | arctan[sgn(y)v/u] |
q13-q14 | Velocity component | u, v |
q15 | Density | ρ |