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A method of rotary engine performance prediction

Drbal Milan

Zeszyty Naukowe. Transport / Politechnika Śląska

2020

z. 108

37--43

. The rotary engine mainly developed for the automotive industry by the NSU corporation is currently used in unmanned aircraft, transportable generators and small watercraft. In the early stage of the engine development, the simulation of the performance characteristics is advisable. The 3D CFD engine simulation is highly expensive in terms of CPU time demand and requires a high level of optimisation to provide adequate data. This method can be used later in the development and fine engine tuning. For the design of the prototype 1D, simulation is being used as a tool to compare various designs of the engine. While the current commercially available software (GT-suite, Ricardo Wave, etc.) is being improved marginally, the functionality of the software is being tested on the piston reciprocating engines. This paper explores the possibility of the algorithms of such a software to be used on the rotary engine thermodynamic simulation and provides an approach to design a simulation model that can be solved by the software to predict the performance characteristics of the engine prototype.

Wykorzystanie metody Angstrӧma do wyznaczania wartości przewodności cieplnej metali w warunkach „in-situ”

Urbanek P.

Zeszyty Naukowe. Elektryka / Politechnika Łódzka

2017

z. 127

165--172

Praca zawiera krótki opis metody Angstrӧma wraz z symulacją wyznaczania wartości przewodności cieplnej w układzie jednowymiarowym. Sprawdzono symulacyjnie możliwość zastosowania metody w układach odbiegających od teoretycznych założeń tej metody.

The work includes a brief description of the Angstrӧm method together with a simulation of the determination of thermal conductivity values in a one dimensional system. The possibility of applying the method in the systems deviating from the theoretical assumptions of this method has been simulated.