Interrupt Control for a expression-based monitor

kohyar · November 30, 2016, 15:06

Hi every body

I am about to use interrupt control for an expression value which is locator-based, the expression is as below:

"areaAve(Total Pressure)@Stationary Outlet"

using the expression the area average of total pressure is calculated on outlet of domain. considering the name of this monitor point to be as ''m''. I want to interrupt the run when the standard deviation of m becomes lower than 100 pa.

I use the below logic expression in interrupt control:

probe(Expression Value.Standard Deviation)@m 50 <100

but this error pops up
"Bad expression value 'probe(Expression Value.Standard Deviation)@MP outletP 50' detected in parameter 'Logical Expression' in object '/FLOW:Flow Analysis 1/SOLVER CONTROL/INTERRUPT CONTROL/INTERRUPT CONDITION:Interrupt Condition 1'.
CEL error:
The following unrecognised names were referenced: Expression Value.Standard Deviation (on 'm 50'), m 50.

I will be grateful if someone help me out.

Regards

Antanas · December 1, 2016, 08:22

Quote:

Originally Posted by kohyar

Hi every body

I am about to use interrupt control for an expression value which is locator-based, the expression is as below:

"areaAve(Total Pressure)@Stationary Outlet"

using the expression the area average of total pressure is calculated on outlet of domain. considering the name of this monitor point to be as ''m''. I want to interrupt the run when the standard deviation of m becomes lower than 100 pa.

I use the below logic expression in interrupt control:

probe(Expression Value.Standard Deviation)@m 50 <100

but this error pops up
"Bad expression value 'probe(Expression Value.Standard Deviation)@MP outletP 50' detected in parameter 'Logical Expression' in object '/FLOW:Flow Analysis 1/SOLVER CONTROL/INTERRUPT CONTROL/INTERRUPT CONDITION:Interrupt Condition 1'.
CEL error:
The following unrecognised names were referenced: Expression Value.Standard Deviation (on 'm 50'), m 50.

I will be grateful if someone help me out.

Regards

Here's answer:

Quote:

The following unrecognised names were referenced: Expression Value.Standard Deviation (on 'm 50'), m 50.

Opaque · December 1, 2016, 09:53

What version of ANSYS CFX are you using ?

Have you setup the monitor statistics for the monitor point you are probing ?

November 30, 2016, 15:06	Interrupt Control for a expression-based monitor	#1
kohyar New Member kohyar Join Date: Oct 2016 Posts: 1 Rep Power: 0	Hi every body I am about to use interrupt control for an expression value which is locator-based, the expression is as below: "areaAve(Total Pressure)@Stationary Outlet" using the expression the area average of total pressure is calculated on outlet of domain. considering the name of this monitor point to be as ''m''. I want to interrupt the run when the standard deviation of m becomes lower than 100 pa. I use the below logic expression in interrupt control: probe(Expression Value.Standard Deviation)@m 50 <100 but this error pops up "Bad expression value 'probe(Expression Value.Standard Deviation)@MP outletP 50' detected in parameter 'Logical Expression' in object '/FLOW:Flow Analysis 1/SOLVER CONTROL/INTERRUPT CONTROL/INTERRUPT CONDITION:Interrupt Condition 1'. CEL error: The following unrecognised names were referenced: Expression Value.Standard Deviation (on 'm 50'), m 50. I will be grateful if someone help me out. Regards

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December 1, 2016, 09:53		#3
Opaque Senior Member Join Date: Jun 2009 Posts: 1,880 Rep Power: 33	What version of ANSYS CFX are you using ? Have you setup the monitor statistics for the monitor point you are probing ?