Residual Normalization Procedure

MissCFD · June 12, 2016, 21:15

Hello,

In the theory guide of CFX, it is written that the normalized residual is given in general by:
$\left[\tilde{r}_\varphi\right]=\frac{\left[r_\varphi\right]}{a_p \Delta\varphi}$ , where $r_\varphi$ is the raw residual control volume imbalance.

I have a few questions of clarification:

1) What does that mean "raw residual" ? Is it non-normalized residual ?
2) It is unclear if the bracket referred to the matrix that group each residual for each control volume or if it's the sum of all residual of all control volume (like the RMS average) ?

3) If I want the formula for one control volume only, I have to write the formula as follows ?
$\tilde{r}_\varphi=\frac{r_\varphi}{a_p \Delta\varphi}$

Thanks !

MissCFD · June 13, 2016, 22:38

Nobody can help me ?

June 12, 2016, 21:15	Residual Normalization Procedure	#1
MissCFD Senior Member Join Date: Aug 2014 Posts: 160 Rep Power: 11	Hello, In the theory guide of CFX, it is written that the normalized residual is given in general by: $\left[\tilde{r}_\varphi\right]=\frac{\left[r_\varphi\right]}{a_p \Delta\varphi}$ , where $r_\varphi$ is the raw residual control volume imbalance. I have a few questions of clarification: 1) What does that mean "raw residual" ? Is it non-normalized residual ? 2) It is unclear if the bracket referred to the matrix that group each residual for each control volume or if it's the sum of all residual of all control volume (like the RMS average) ? 3) If I want the formula for one control volume only, I have to write the formula as follows ? $\tilde{r}_\varphi=\frac{r_\varphi}{a_p \Delta\varphi}$ Thanks ! Last edited by MissCFD; June 13, 2016 at 10:23.

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June 13, 2016, 22:38		#2
MissCFD Senior Member Join Date: Aug 2014 Posts: 160 Rep Power: 11	Nobody can help me ?