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To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] duct shape
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Steve;
Thanks for the link! A quick read indicates that I built an intake duct tha=
t closely matches the study example for a return flow discharge header. I c=
an shave off the duct wall and reconfigure it to match the ideal shape for =
a parallel flow discharge to free stream or box header.=20


-----Original Message-----
From: Steven W. Boese <SBoese@uwyo.edu>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sun, Feb 23, 2014 10:41 pm
Subject: [FlyRotary] duct shape



The following link references a study of oblique inlet shape for heat excha=
ngers that might be a good starting point for radiator and oil cooler duct =
construction.  The coordinates below can be scaled for the core size to be =
used.
=20
http://www.rotaryeng.net/Oblique-flow-diffusers.pdf
 =20
X       Z
0       1=20
0.1   0.89
0.2   0.76
0.3   0.63
0.4   0.51
0.5   0.39
0.6   0.29
0.7   0.2
0.8   0.12
0.9   0.06
1       0=20
=20


Steve Boese
RV6A, 1986 13B NA, RD1A, EC2




=20
=20
=20

=20



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<font color=3D'black' size=3D'2' face=3D'arial'>
<div>Steve;</div>

<div>Thanks for the link! A quick read indicates that I built an intake duc=
t that closely matches the study example for a return flow discharge header=
. I can shave off the duct wall and reconfigure it to match the ideal shape=
 for a parallel flow discharge to free stream or box header.&nbsp;</div>

<div></div>

<div></div>

<div style=3D"color: black; font-family: arial,helvetica; font-size: 10pt;"=
>-----Original Message-----<br>
From: Steven W. Boese &lt;SBoese@uwyo.edu&gt;<br>
To: Rotary motors in aircraft &lt;flyrotary@lancaironline.net&gt;<br>
Sent: Sun, Feb 23, 2014 10:41 pm<br>
Subject: [FlyRotary] duct shape<br>
<br>




<div id=3D"AOLMsgPart_1_7326299d-04e0-4308-a866-9bd577f05cc6">






<div class=3D"aolReplacedBody">

<div style=3D"color: rgb(0, 0, 0); font-family: Calibri,Arial,Helvetica,san=
s-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">

<div>The following link references a study of oblique inlet shape for heat =
exchangers that might be a good starting point for radiator and oil cooler =
duct construction.&nbsp; The coordinates below can be scaled for the core s=
ize to be used.</div>


<div>&nbsp;</div>


<div><a href=3D"http://www.rotaryeng.net/Oblique-flow-diffusers.pdf" target=
=3D"_blank">http://www.rotaryeng.net/Oblique-flow-diffusers.pdf</a></div>


<div>&nbsp; </div>


<div>X&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Z</div>


<div>0&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; 1&nbsp;</div>


<div>0.1&nbsp;&nbsp; 0.89</div>


<div>0.2&nbsp;&nbsp; 0.76</div>


<div>0.3&nbsp;&nbsp; 0.63</div>


<div>0.4&nbsp;&nbsp; 0.51</div>


<div>0.5&nbsp;&nbsp; 0.39</div>


<div>0.6&nbsp;&nbsp; 0.29</div>


<div>0.7&nbsp;&nbsp; 0.2</div>


<div>0.8&nbsp;&nbsp; 0.12</div>


<div>0.9&nbsp;&nbsp; 0.06</div>


<div>1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;</div>

<font face=3D"Tahoma" size=3D"2">

<div>&nbsp;</div>


<div></div>


<div>

<div>

<div><font face=3D"tahoma" size=3D"2">Steve Boese</font></div>


<div><font face=3D"tahoma" size=3D"2">RV6A, 1986 13B NA, RD1A, EC2</font></=
div>

</div>

</div>


<div></div>

</font>

<div></div>


<div>

<div>&nbsp;</div>

&nbsp;</div>

&nbsp;

<div></div>


<div>&nbsp;</div>

</div>

</div>



</div>




</div>
</font>
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