Preliminary project of flow channel of ramjet engine

Jakub Kalke , Mateusz Szczeciński

Abstract

Barrel engines are still not very popular and differ from conventional piston engines, it leads to lack of publicly available methods of optimization in such machines. The aim of this thesis is to propose an finite algorithm of conduct, which will allow user to make a purposeful and monitored optimization of gas dynamics, especially concerning scavenging and pressure loses. In the introduction authors gathered most important knowledge concerning used tools. There have been presented a variety of discretization methods, boundary conditions and interpolation schemes together with main fields of their application and ad-vantages/drawbacks. There is also a short comparison of different turbulence modeling approaches. Further part describes solid, liquid and gaseous biofuels with extra information con-cerning syngas. Authors presented data showing the potential of such fuel by describing resources available in Poland and calorific values of different fuels. Moreover, they stated problems arising from usage of syngas. Next part is a thoughtful analysis of available algorithms in commercial software (in this case Ansys Workbench) which can be used or adapted to presented case study. Three main tools were described: Design of Experiments, Adjoint Solver and Mesh Morpher. Unfortunately, they turned out to be unsuitable to optimize a transient, scavenging process. In the final section of the thesis authors presented their approach to the problem and some results of optimized solution together with encountered problems and possible solu-tions. Additionally, they presented 0D methods in combustion. Finally, they pointed out possible improvements of their methodology aimed at improving the reliability and accu-racy of the results.
Diploma typeMaster of Science
Author Jakub Kalke WMEiL
Jakub Kalke,,
- Faculty of Power and Aeronautical Engineering
, Mateusz Szczeciński WMEiL
Mateusz Szczeciński,,
- Faculty of Power and Aeronautical Engineering
Title in PolishOptymalizacja gazodynamiczna w koncepcyjnych silnikach rewolwerowych
Supervisor Paweł Mazuro ITC
Paweł Mazuro,,
- The Institute of Heat Engineering
Certifying unitFaculty of Power and Aeronautical Engineering (FPAE)
Affiliation unitThe Institute of Heat Engineering (IHE)
Study subject / specializationMechanika i Budowa Maszyn
Languagepl polski
StatusFinished
Defense Date23-09-2013
Issue date (year)2013
Pages204
Internal identifierMEL; PD-2329
Reviewers Paweł Mazuro ITC
Paweł Mazuro,,
- The Institute of Heat Engineering
, Andrzej Teodorczyk ITC
Andrzej Teodorczyk,,
- The Institute of Heat Engineering
Keywords in Polishmechanika płynów, CFD, turbulencja, wymiana ciepła, wymiana ładunku, metody numeryczne, silniki tłokowe, silniki rewolwerowe, optymalizacja, syn-gaz, spalanie
Keywords in English-
Abstract in PolishCelem pracy było opracowanie algorytmu pozwalającego na optymalizację gazody-namiczną w tłokowym, rewolwerowym silniku dwusuwowym, docelowo mającym spalać syngaz. Ponieważ jest to silnik wysoce niestandardowy, z dużą ilością ciekawych rozwią-zań (takich jak przeciwstawny układ tłoków, brak klasycznych układów rozrządu i korbo-wego, nietypowe paliwo, praca przy bardzo wysokich ciśnieniach spalania) brak jest ogól-nie dostępnych metod służących do optymalizacji
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Praca_magisterska.pdf 6.9 MB

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