Flow Resistivity; Port Depth; Quandary

andrebrito · 18th September 2008

Quote:

So, I would like to know either a)is there actually a more precise agreed-upon value for the fluffy pink, or b)how can I predict the effect of moving a given thickness of material forward or back within the chamber, taking into account the length of ports extending into the cabinet?

a) don't know... this should be given by the manufacturer

b) yes, by using two-port analysis where you switch the location of the materials within the entire wall if I'm actually understanding what you are asking. There's software for this matter like WinFlag or if you have patience (a lot of it) you can program it in Matlab.

avare · 18th September 2008

What angle of incidence are you using? What is your % open area?

Andre

softmargin · 18th September 2008

softmargin · 25th September 2008

andrebrito · 25th September 2008

Good question,

You can still use two port analysis, but you will have to modify the impedance of the port/cabinet part I presume.

18th September 2008	#1
softmargin Gear interested Join Date: Dec 2007 Location: Raleigh, North Carolina Posts: 7 Thread Starter	Flow Resistivity; Port Depth; Quandary xxx

18th September 2008	#4
softmargin Gear interested Join Date: Dec 2007 Location: Raleigh, North Carolina Posts: 7 Thread Starter	xxx

25th September 2008	#5
softmargin Gear interested Join Date: Dec 2007 Location: Raleigh, North Carolina Posts: 7 Thread Starter	xxx

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18th September 2008	#3
avare Lives for gear Join Date: May 2004 Location: Hamilton, On Canada Posts: 3,483	What angle of incidence are you using? What is your % open area? Andre

25th September 2008	#6
andrebrito Lives for gear Join Date: Jan 2007 Location: Lisbon, Portugal Posts: 961	Good question, You can still use two port analysis, but you will have to modify the impedance of the port/cabinet part I presume.