Just a heads up, one of the stress engineers and I are going to try to build
a computer model of the intake path of the rotary (probably start with just
one port, the end housing, and work from there) to maximize volumetric
efficiency. IE, we want to solve for the changes in velocity and airflow for
various changes made to say, a stock 88 NA intake.

Anyone able to CC me any relevant SAE papers (I'm not a member) or point me
to other data sources? Anything I need to watch out for? This guy is very
good at aircraft but he's not too car savvy, so I need to guide him along
here a bit.

Mike Harrington

Here are some SAE papers which may be of some use to you.  I've only had access to SAE
papers on microfiche from the years 1975 through 1992.

SAE paper 831010, "Improvement of Rotary Engine Performance by New Induction System"
There is a section with a simple math model of the dynamic effect chamber.

SAE paper 870446, "Present and Prospective Technologies of Rotary Engine"
This paper mentions some pumping loass reductin system.  I don't know if Mazda ever
implemented such a system.  Also discussed is a TISC (Timed Induction with Super Charge),
as well as a direct injection stratification system.

SAE papers 900030 and 900031, "Airflow Visulaization and LDV Measurements in a Motored
Rotary Engine Assembly".  Might also be of use.

SAE paper 900032, "Prediction of Power Output Performance of the Rotary Engine by Gas
Exchange Simulation".  This paper provides a description of the mathematical formulas a
group of Mazda engineers used to more adequately predict airflow through the intake system
and the engine.

Scott

 
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