Profile question

KeganLeckness · January 27, 2016, 12:27

Hi,

I've applied an experimental waveform to a pressure-inlet using a profile. I then monitored the maximum pressure on that boundary. My input profile has a maximum pressure of 80 kPa, meanwhile my monitor says the maximum pressure is 65 kPa.

The monitor and input waveform have the same shape, but have different maximum values for the initial peak. Why might this be? My thinking is that the input values should be identical to those monitored.

Thanks

D.B · January 27, 2016, 20:23

Is your entire profile displaced by 15kPa ? Check your reference pressure and cross check if you are applying and evaluating the same( reference/absolute)

Cheers,

KeganLeckness · January 28, 2016, 16:15

The 15 kPa difference was only at the peak of the waveform. What happened was I was monitoring static pressure, instead of total pressure. Thank you for your response.

Kegan

January 27, 2016, 12:27	Profile question	#1
KeganLeckness Member Kegan Leckness Join Date: Mar 2015 Posts: 38 Rep Power: 11	Hi, I've applied an experimental waveform to a pressure-inlet using a profile. I then monitored the maximum pressure on that boundary. My input profile has a maximum pressure of 80 kPa, meanwhile my monitor says the maximum pressure is 65 kPa. The monitor and input waveform have the same shape, but have different maximum values for the initial peak. Why might this be? My thinking is that the input values should be identical to those monitored. Thanks

January 27, 2016, 20:23		#2
D.B Member DB Join Date: Apr 2011 Posts: 87 Rep Power: 15	Is your entire profile displaced by 15kPa ? Check your reference pressure and cross check if you are applying and evaluating the same( reference/absolute) Cheers, __________________ -D.B

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January 28, 2016, 16:15		#3
KeganLeckness Member Kegan Leckness Join Date: Mar 2015 Posts: 38 Rep Power: 11	The 15 kPa difference was only at the peak of the waveform. What happened was I was monitoring static pressure, instead of total pressure. Thank you for your response. Kegan