Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Stanisław Kachel"'
Autor:
Piotr Wróblewski, Stanisław Kachel
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-18 (2023)
Abstract In internal combustion piston engines, the process of oil film formation differs from that in industrial machines. The adhesive strength of the molecules at the interface between the coating of engine parts and the lubricating oil affects th
Externí odkaz:
https://doaj.org/article/f97cbbad033249ef94e9ed0da0c04144
Autor:
Piotr Wróblewski, Stanisław Kachel
Publikováno v:
Energies, Vol 17, Iss 15, p 3697 (2024)
This work focuses on the evolution of lubrication wedge shaping in internal combustion piston engines, taking into account liquid microflows on curved surfaces and coating microgeometries. It introduces a new approach to the analysis of friction loss
Externí odkaz:
https://doaj.org/article/b4cfa4d563b44ee986abeb5f5877aa5c
Autor:
Marta Marciniuk, Paweł Piskur, Łukasz Kiszkowiak, Łukasz Malicki, Krzysztof Sibilski, Katarzyna Strzelecka, Stanisław Kachel, Zygmunt Kitowski
Publikováno v:
Energies, Vol 17, Iss 8, p 1801 (2024)
In recent years, morphing wings have become not only a concept, but an aerodynamic solution for the aviation industry to take a step forward toward future technologies. However, continuously morphing airfoils became an interesting answer to provide g
Externí odkaz:
https://doaj.org/article/c6b2b4a17f91437893d547603041c390
Publikováno v:
Applied Sciences, Vol 13, Iss 24, p 13035 (2023)
This paper presents a comparative analysis of the results obtained using the computational fluid dynamic method and a hydrodynamic tunnel. The aerodynamic properties of the General Dynamics F-111 Aardvark aircraft were subjected to both qualitative a
Externí odkaz:
https://doaj.org/article/ef6e7475dcaa4270b4c16e800525d37e
Autor:
Piotr Wróblewski, Stanisław Kachel
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/ee3babfd67a94d6e9ad5901c5a655e97
Publikováno v:
Energies, Vol 16, Iss 19, p 6847 (2023)
The aim of this article is to propose methods for obtaining the aerodynamic characteristics of a flying object in a turbulent atmosphere. This article presents static aerodynamic characteristics of an unmanned aerial vehicle (UAV), which have been ob
Externí odkaz:
https://doaj.org/article/d085fe322dd142ca98b45b3d16ad3e8f
Publikováno v:
Problemy Mechatroniki, Vol 12, Iss 3, Pp 27-52 (2021)
This work contains the results of a modern helicopter construction analysis. It includes the comparison of almost seventy rotorcraft constructions in terms of size in line with EASA requirements – large and small helicopters. The helicopters are al
Externí odkaz:
https://doaj.org/article/f40d4c1e98c34e358e0263d86356290f
Publikováno v:
Materials, Vol 16, Iss 17, p 5939 (2023)
This paper presents an analysis of the causes of damage and fragmentation to the high-pressure turbine (HTP) disc of the RD-33 engine mounted in the MIG-29 aircraft. The authors have carried out an analysis of the changes to the structure of the disc
Externí odkaz:
https://doaj.org/article/311f1597ae9e46e8be26e4ddf033c33e
Publikováno v:
Applied Sciences, Vol 13, Iss 9, p 5584 (2023)
This article presents a genetic algorithm modification inspired by events related to great extinctions. The main objective of the modification was to minimize the number of objective function solutions until the minimum for the function was establish
Externí odkaz:
https://doaj.org/article/152d2f366571497a94a3c41154650e54
Publikováno v:
Advances in Sciences and Technology, Vol 14, Iss 4, Pp 49-57 (2020)
This paper presents selected issues regarding the design of a complex object of a turbine jet engine inlet duct model for the purposes of numerical analysis of the phenomenon of inlet vortex formation. The authors described the process of discretisat
Externí odkaz:
https://doaj.org/article/a8863f1ea0044a5a8cbf6c06aa046660