TITLE	Hofler's 1986 thermoacoustic refrigerator
!  Geometry comes from Hofler thesis, pages 28,64, 68, 115, 130, 133.

BEGIN
1.0e6 Pa	Mean P
500. Hz 	Freq
300. K	T-beg
3.0e4 Pa	|p|@0
0.0 deg	Ph(p)@0
5.0e-4 m3/s	|U|@0
0.0 deg	Ph(U)@0
helium  	Gas

ENDCAP	Driver end		      
1.134e-3 m2	 Area
sameas 0	Gas

ISODUCT	Room temp duct	      
sameas 1	Area
0.119 m	Perim
4.26e-2 m	Length
sameas 0	Gas

HXFRST	Room temp duct heat exchanger   
sameas 1	Area
0.600 	GasA/A
6.35e-3 m	Length
0.19e-3  m	y0
-20.0 W	HeatIn    
300.  K   	Est-T (I hope this was the experimental value.)
sameas 0	Gas

STKSLAB	Stack		     
sameas 1	Area
0.724	GasA/A
7.85e-2 m	Length
1.8e-4  m	y0
4.0e-5 m	Lplate
sameas 0	Gas
kapton          	Solid

HXLAST	Cold HX		    
sameas 1	Area
0.67 	GasA/A
2.54e-3 m	Length
2.55e-4  m	y0
3.0 W	HeatIn    
200.  K   	Est-T
sameas 0	Gas

ISODUCT	Cold Duct	
3.84e-4 m	Area
0.0694 m	Perim
0.167 m	Length
sameas 0	Gas

ISOCONE		
sameas 6	Initial Area
sameas 6	In Perim
6.68e-2 m 	Length
1.16e-3 m2	Final area
0.121 m	Final Perim
sameas 0	Gas

COMPLIAN End Bulb   
0.049  m2	 Area    
1.06e-3 m3	Volume
sameas 0	Gas

HARDEND		
0.	Re(zinv) W/Pa^2
0.	Re(zinv) W/Pa^2
sameas 0	Gas