Práce a štúdie - Vydanie 10

Permanent URI for this collectionhttps://drepo.uniza.sk/handle/hdluniza/450

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Author: search.filters.author.Čerňan, Jozef

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    Wing magnetohydrodynamic facility of aircraft propulsion system
    (University of Zilina, 2021) Miča, Pavol; Čerňan, Jozef
    Magnetohydrodynamics is one of the relatively new fields of physics studying the dynamics of magnetic fields in electrically conductive fluids. The implementation using magnetohydrodynamic principles applied to aircraft propulsion systems is so far only in a range of experiments. So far, real applications have occurred only a few times and always only at the level of experiments and prototypes. In my paper, I deal with the application of a magnetohydrodynamic device built into the wing of an airplane. This means should work as a secondary type of drive in cooperation with the primary drive, which is represented by a turbofan motor. The device´s main function is to reduce the fuel requirements of the primary drive and reduce noise and other harmful emissions. The work also includes drawings created in the program AutoCAD, where I designed the location and implementation of a wing magnetohydrodynamic device in the wing of general construction. In this work, I also explore the advantages and disadvantages of using different tips of the primary drive. I am also researching the current state of the problem where I am analyzing the Japanese project of the YAMATO-1 semi-catamaran with magnetohydronymous propulsion and a prototype of an ion-powered crawler from IMT scientists. I also examine in detail all the theoretical knowledge concerning magnetohydrodynamics and wing design. Finally, I compare the advantages and disadvantages of using this tool as well as other technical issues related to construction. This work can serve as a basis for further future research into the application of magnetohydrodynamic principles in aviation
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    Design optimization of a compressor stage with counter-rotating rotors
    (University of Zilina, 2021) Šajbanová, Kristína; Čerňan, Jozef
    The paper deals with the design optimization of the compressor stage with counter-rotating rotors, especially in order to create a model which, due to its parameters in real operation, would achieve the maximum possible values of efficiency. The primary goal of this work is to create a design of a compressor stage with counter-rotating rotors from a theoretical point of view. The compressor stage model is created using Inventor modelling software and the subsequent design evaluation and optimization is based on airflow analysis of the compressor stage using Ansys Discovery Live software. The secondary goal is to point out the existence and application of innovative and progressive technology of rapid prototyping in the world of aircraft component production and at the same time to emphasize its benefits in comparison with conventional production techniques applied in the initial stages of aircraft component production.
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    Design of a bladeless engine compressor based on magnetohydrodynamics
    (University of Zilina, 2021) Stachová, Jana; Čerňan, Jozef
    This article is a technical analysis focusing on the design of a bladeless compressor based on magnetohydrodynamics and the possibilities of its use. The aim of this work is to design new solutions in the field of aircraft compressors and to provide a comprehensive overview of scientific information on the topic. Emphasis is also placed on acquainting the reader with the basic principles of magnetohydrodynamics and the possibilities of its application in the field of aircraft propulsion units. The work is a combination of professional research of scientific information in the field of plasma and magnetohydrodynamics and a practical part whose goal is to create new design of a bladeless compressor using scientific observation and modelling methods. This design was also examined in the work using the method of comparison, which aimed to examine the design and its behaviour in different configurations. The main goal was to combine essential and key information from the researched area and apply it in a completely new way in designing new solutions in issued area