Hello Paul,

the paper is about the AE75 prototype of Austro Engine / Diamond Engine in
Vienna. Es far as I've heard, the development is not cancelled, but they try
to change to heavy fuel for military use ...

Perhaps they will use a system like in "Cubewano Style" with low pressure
injection + "electric preheating" ...

I think, I've sent you the patents - but I'm not shure ... ;-)

You know, that the air force, army + navy want to use only 1 type of fuel
"for everything" + that there's a lot of money to spend in this area ... ;-)


With kindest regards

Franky / Frank Herfert

I think you have the wrong paper there Frank.

Nothing is said about that in the Abstract.


"This paper describes the development of a comprehensive simulation
environment for investigations of gas-dynamic processes and
combustion phenomena in rotary engines, conducted by the Austrian
Institute for Powertrains and Automotive Technology of the Vienna
University of Technology. In this connection, proven, commercially
available engine cycle calculation Software-Tools have been used.
For this, a rotary engine test bench has been established. As analysis
tools, in addition to the traditional acquisition of the emitted engine
torque, various pressures and temperatures, the recording of the
pressure profile (combustion analysis measurement system) in the
combustion chamber, as well as in the intake and exhaust ports, were
used. The data of the test bench were used to develop and validate the
methodology for the simulation tools."


"The focus in this paper is the development of a CFD (computational
fluid dynamics) model with the software Converge from Convergent
Science, Inc. In close cooperation with Convergent Science, Inc., a
functioning basic Wankel model was developed. Using this model, it
was possible to monitor and analyze the gas flow and the combustion
processes in the three combustion chambers simultaneously.
To calculate the combustion, the SAGE module was used. This is a
predictive combustion model that is based on the chemical reaction
mechanism of the respective fuels. Therefore, a combustion reactor
was constructed and the flame propagation was analyzed in detail
(Combustion analysis and High-Speed-Camera). Thus, the numerical
model could be adjusted and optimized."

Paul Lamar

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