X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nskntmtas05p.mx.bigpond.com ([61.9.168.149] verified) by logan.com (CommuniGate Pro SMTP 6.0.8) with ESMTP id 6751113 for flyrotary@lancaironline.net; Wed, 26 Feb 2014 16:29:53 -0500 Received-SPF: pass receiver=logan.com; client-ip=61.9.168.149; envelope-from=neil.unger@bigpond.com Received: from nskntcmgw08p ([61.9.169.168]) by nskntmtas05p.mx.bigpond.com with ESMTP id <20140226212918.WATH19534.nskntmtas05p.mx.bigpond.com@nskntcmgw08p> for ; Wed, 26 Feb 2014 21:29:18 +0000 Received: from UserPC ([121.217.20.66]) by nskntcmgw08p with BigPond Outbound id X9VE1n00f1RYhqp019VFQt; Wed, 26 Feb 2014 21:29:18 +0000 X-Authority-Analysis: v=2.0 cv=b8MwE66x c=1 sm=1 a=W2k/G0qBFzo7iVoLBMOS3w==:17 a=JDadKst33uMA:10 a=1IlZJK9HAAAA:8 a=Nfr8LWEK6rkA:10 a=fN7KZKRRAAAA:8 a=wYRzL1wDBqnRvbFSfYMA:9 a=wPNLvfGTeEIA:10 a=Ia-xEzejAAAA:8 a=uzlM8kNKV4LGesRROKsA:9 a=_W_S_7VecoQA:10 a=frz4AuCg-hUA:10 a=EzXvWhQp4_cA:10 a=tLylOUXtf_BSP05M:21 a=W2k/G0qBFzo7iVoLBMOS3w==:117 Message-ID: From: "Neil Unger" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] duct shape Date: Thu, 27 Feb 2014 08:28:49 +1100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01CF3395.F0B19FB0" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 This is a multi-part message in MIME format. ------=_NextPart_000_000C_01CF3395.F0B19FB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Steve, You must have better eyes than I, as I searched all the = article and could not find the figures you quote. What page are they = on?? Neil. From: Steven W. Boese=20 Sent: Monday, February 24, 2014 5:39 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] duct shape 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. The coordinates below can be scaled for the = core size to be used. http://www.rotaryeng.net/Oblique-flow-diffusers.pdf 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 Steve Boese RV6A, 1986 13B NA, RD1A, EC2 =20 =20 ------=_NextPart_000_000C_01CF3395.F0B19FB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Steve,

&n= bsp;=20 You must have better eyes than I, as I searched all the article and = could not=20 find the figures you quote. What page are they on?? = Neil.

From: Steven W. Boese

Sent: Monday, February 24, 2014 5:39 PM

To: Rotary motors in = aircraft

Subject: [FlyRotary] duct shape

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=20 construction. The coordinates below can be scaled for the core = size to be=20 used.

http://www.r= otaryeng.net/Oblique-flow-diffusers.pdf

X Z

0 1

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

Steve Boese

RV6A, 1986 13B NA, RD1A,=20 EC2

=20

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