div(phi,U) 中 filteredLinear类疑惑

[hy1112006]

Divergence scheme 中的 filteredLinear, filteredLinear2, filteredLinear2V 有什么区别吗？
如果想设置 div(phi,U) 为这类 scheme, 用哪个最优呢？ 谢谢~

[李东岳]

还没用过这俩个格式

[hy1112006]

@东岳

在rhoPimpleFoam/LES/pitzDaily 算例里找到了这个应用，

---Properties
 Second order
 Unbounded
 Attempts to limit the unboundedness of the linear scheme
---Usage
The scheme is specified using:

divSchemes
{
    default         none;
    div(phi,U)      Gauss filteredLinear2 <k> <l>;
}

---Where the coefficients
--k: Scales the rate at which the correction is applied
0 : linear
1 : fully limited
--l: Maximum allowed overshoot/undershoot relative to the difference across the face.
0 : no overshoot/undershoot
1 : overshoot/undershoot equal to the difference across the face

对于矢量时候 用filteredLinear2V， 求解出来流场的unboundedness 介于 Gauss Linear (unbounded) 和 Gauss GammaV (bounded)中间