Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "flow behaviour" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Study of flow behaviour in a three products hydrocyclone screen: numerical simulation and experimental validation
Autorzy:
Wang, Chuanzhen
Chen, Jianzhong
Shen, Lijuan
Ge, Linhan
Powiązania:
https://bibliotekanauki.pl/articles/109798.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
three productshydrocyclone screen
flow behaviour
Computational Fluid Dynamics
particle image velocimetry
water split
Opis:
A novel three products hydrocyclone screen (TPHS) has been successfully developed; it consists of a cylindrical screen embedded in a conventional hydrocyclone (CH). In the new liquid cyclone, the combination of centrifugal classification and screening was employed for particle separation based on size. The aim of this study is to investigate the flow behaviour in TPHS using numerical simulation and experimental validation. A computational fluid dynamics simulation with a 4.35 million grid scheme and linear pressure–strain RSM generated the economic and grid-independence solution, which agreed well with the experiments of particle image velocimetry and water split. The velocity vector profile reveals that TPHS represented similar flow patterns to CH, wherein in addition to the outer downward swirl flow, inner upward swirl flow, central down-flow, second circulatory flow, and mantle, a particular fluid flow named screen underflow was created in TPHS owing to the presence of a cylindrical screen. The velocity distribution demonstrates that in TPHS, relative to CH, with the increase in radius, the lower tangential and higher radial velocity first increased to a peak and subsequently decreased, while the axial velocity primarily reduced to zero, increased in the opposite direction, and finally decreased rapidly to zero again. In addition, a disadvantageous flow, namely, screen backflow, was generated in TPHS, wherein the farther away the flow is from the feed inlet, the earlier this flow behaviour occurred. However, the rational scheme of aperture size and screen length can completely remove the screen backflow in TPHS.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 4; 879-895
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Postawy wobec geoturystyki i zachowania osób zwiedzających podziemne geostanowiska w Kletnie
Attitudes towards geotourism and tourist behaviour of visitors to the subterranean geosites in Kletno
Autorzy:
Prószyńska-Bordas, Hanna
Woźniak, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/465096.pdf
Data publikacji:
2017-01-30
Wydawca:
Akademia Wychowania Fizycznego we Wrocławiu
Tematy:
turystyka
geoturystyka
ruch turystyczny
zachowania turystyczne
tourism
geotourism
visitors flow
tourist behaviour
Opis:
Background. The article presents the results of a survey conducted among visitors to the geosites in the Stronie Śląskie municipality: the Niedźwiedzia Cave and the defunct uranium and fluorite mine in Kletno. Material and methods. The basic data collected on-site include the demographic features (such as gender, age, level of education, occupation, origin), tourist behaviour (length of stay, accompanying persons, transport, accommodation, source of information used, etc.), attitude towards the geotourist activities, and willingness to pay for the entrance and souvenirs. Results and conclusions. The study confirmed that the level of education was an important determinant of participation in geotourism, making it still an elite activity. Nearly half of the surveyed tourists came from huge urban agglomerations. The willingness to pay the entrance fees to geotourist attractions did not significantly exceed the actual prices. The geotourist offer needs to be made more attractive and variable in order to meet the needs of diverse sectors of geotourist product consumers.
Źródło:
Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu; 2016, 55; 38-50
0239-4375
Pojawia się w:
Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies