Mr Robert Geis wrote:
Paul,
I found this study interesting since I'll be building
a Long EZ and considering the 13B.
http://4dw.net/marcborom/LongEZ/NACA_AirFlow.htm
Does this test fall in line with your studies of NACA
inlets for cooling and would you see this as a
possible installation for me?
Thank you much,
Bob Geis
Don't know. Their web site does not work with my browser.
Probably composed with a MicroSoft product.
Have you read the original NACA paper?
Paul Lamar
Paul, what browser are you using? It works in both Mozilla and Konqueror for
me, and Konqueror ain't known for dealing well with poorly coded pages. There
aren't any weird HTML tags in the source - in fact, it almost looks hand-coded
because it's so simple.
Regards,
Chad
I am using Netscape 4.6. I tried it with and with out Java.
I don't know why we can't have standards that work?
This rational of improving on standards is BS.
The very first NetScape browser and WWW web pages worked
great and were entirely adequate. Things went down hill
from there thanks to Micro Soft.
Paul Lamar
Paul. Netscape 4.7 won't read this page, We used 7.1. However this is the page
source read with 4.7.
Don't see why 4.7 won't display it.
Royce
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<HEAD><TITLE>NACA Air Flow Tests With and Without Corner Baffles</TITLE></HEAD>
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<TD align=center><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size=+1><B>Description of Oil Flow Test</B></TD></TR><BR>
<tr><td align=center><font size=-1>by Marc Borom,<br>Dec. 15,
2003</TD></TR><BR>
<TR><TD align=left>
<FONT face="Verdana, Arial, Helvetica, Sans-Serif" size=-1>
<BR>Used oil was brushed on
areas of the belly of the plane ahead of the regions where air flow was to
be monitored.
The plane was then flown normally for about 30 minutes. After landing,
the oil flow patterns were
photographed. Tests were performed with and without an air baffle
installed. The air baffle
used in the test was temporary. It was constructed of a piece of
cardboard and attached
with duct tape.<br><br>
A significant feature is noted in the area where the width of the NACA
scoop
becomes nearly constant. Without the installation of the corner baffle,
the oil is
blown away from the edge of the NACA scoop, indicating that the air in the
scoop
is spilling out and interfering with laminar flow along the belly. More
significantly,
without the baffle, the air is not flowing into the cowl and cooling
effectiveness is being lost.
In addition, drag is increased by the resulting turbulent air.<br><br>
Placement of a simple, triangular baffle prevents the air from spilling
out of the NACA scoop. An
added and important benefit is that <B>cylinder head temperatures are
lowered by about 30 degrees
for each cylinder</B>.<BR><br>
The tests are preliminary, and the optimum size and shape of the baffle
has not
been determined. Any suggestions as to size, shape and placement would be
appreciated.
<br><br>
</FONT></FONT></TD></TR>
<P>
<TR><TD ALIGN=CENTER><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="+1"><B>NACA Air Flow Tests with and without Corner Baffles</B></FONT>
<BR><FONT
face="Verdana, Arial, Helvetica, Sans-Serif" size=-1><BR><B>Click on each
photo for an enlarged view</B> </FONT></TD></TR>
<P>
<TR><TD ALIGN=CENTER><TABLE>
<TR>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0010.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0010.jpg" ALT="NACA_FlowTest0010.jpg"><BR>With Corner
Baffle</A></FONT></TD>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0020.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0020.jpg" ALT="NACA_FlowTest0020.jpg"><BR>No Corner
Baffle</A></FONT></TD>
</TR>
<TR>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0040.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0040.jpg" ALT="NACA_FlowTest0040.jpg"><BR>With Corner
Baffle</A></FONT></TD>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest00454.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest00454.jpg" ALT="NACA_FlowTest00454.jpg"><BR>No Corner
Baffle</A></FONT></TD>
</TR>
<TR>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0060.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0060.jpg" ALT="NACA_FlowTest0060.jpg"><BR>With Corner
Baffle</A></FONT></TD>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0065.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0065.jpg" ALT="NACA_FlowTest0065.jpg"><BR>No Corner
Baffle</A></FONT></TD>
</TR>
<TR>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0080.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0080.jpg" ALT="NACA_FlowTest0080.jpg"><BR>With Corner
Baffle</A></FONT></TD>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0085.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0085.jpg" ALT="NACA_FlowTest0085.jpg"><BR>No Corner
Baffle</A></FONT></TD>
</TR>
<TR>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0090.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0090.jpg" ALT="NACA_FlowTest0090.jpg"><BR>With Corner
Baffle</A></FONT></TD>
</TR>
<TR>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0110.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0110.jpg" ALT="NACA_FlowTest0110.jpg"><BR>With Corner
Baffle</A></FONT></TD>
<TD ALIGN=CENTER VALIGN=BOTTOM><FONT face="Verdana, Arial, Helvetica, Sans-Serif"
size="-2"><A HREF="NACA_FlowTest0100.jpg" target="window"><IMG
SRC="TN_NACA_FlowTest0100.jpg" ALT="NACA_FlowTest0100.jpg"><BR>No Corner
Baffle</A></FONT></TD>
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<P><TR><TD ALIGN=CENTER><TR><TD ALIGN=CENTER></TD></TR>
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