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Wyszukujesz frazę "Zakrzewska, Barbara" wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Air Transport of Explosives – Modern Solutions
Autorzy:
Herc, Kamila
Zakrzewska, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/466217.pdf
Data publikacji:
2018-06-30
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
air transport
dangerous materials
explosives
Opis:
The paper is an introduction into the area of hazardous materials transportation. It includes the description of hazardous materials, classification of hazardous materials, and the list of documents necessary for organizing transport of such materials, as well as the advantages and disadvantages of air transport of hazardous materials, and identification and resolution of problems. The aim of the article is to present the up-to-date information on air transport of explosives in the Polish Army, to identify the problems encountered during the transport preparation process, and to discuss the solution that may improve the current state of affairs. The improvements proposed by the authors include: improvement of dangerous goods labeling, introduction of Polish instructions and transport documents in the Polish Armed Forces, and training of the personnel handling transport in Poland. The proposed solution, when implemented, would help to reduce mistakes in labeling goods, enhance the training process of personnel handling transport, as well as to facilitate the preparation of transport documentation. The starting point for the proposed results came from own research, interviews with specialists dealing with the transport of hazardous materials, including explosives, as well as international transport manuals and instructions.
Źródło:
Safety & Defense; 2018, 4(1), 1; 37-42
2450-551X
Pojawia się w:
Safety & Defense
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Large Eddy Simulation of turbulent flowand heat transfer in a Kenics static mixer
Autorzy:
Murasiewicz, Halina
Zakrzewska, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/185383.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heat transfer
turbulent flow
Large Eddy Simulation
CFD
static mixer
wymiana ciepła
przepływ turbulentny
Symulacja dużych wirów
mikser
Opis:
CFD modelling of momentum and heat transfer using the Large Eddy Simulation (LES) approach hasbeen presented for a Kenics static mixer. The simulations were performed with the commercial codeANSYS Fluent 15 for turbulent flow of three values of Reynoldsnumber,Re=5 000, 10 000 and18 000. The numerical modelling began in the RANS model, where standardk−εturbulence modeland wall functions were used. Then the LES iterations started from the initial velocity and temperaturefields obtained in RANS. In LES, the Smagorinsky–Lilly modelwas used for the sub-grid scalefluctuations along with wall functions for prediction of flowand heat transfer in the near-wall region.The performed numerical study in a Kenics static mixer resulted in highly fluctuating fields of bothvelocity and temperature. Simulation results were presented and analysed in the form of velocity andtemperature contours. In addition, the surface-averaged heat transfer coefficient values for the wholeinsert length were computed and compared with the literature experimental data. Good compliance ofthe LES simulation results with the experimental correlation was obtained.
Źródło:
Chemical and Process Engineering; 2019, 40, 1; 87--99
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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