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Wyszukujesz frazę "ice thickness" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Windshield Defrost Simplified CFD Model
Autorzy:
Schmid, Michal
Powiązania:
https://bibliotekanauki.pl/articles/112070.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
windshield defrost
CFD
ice layer thickness
VOF
Thin Film
model CFD
model VOF
cienki film
Opis:
The windshield defrost system, in general, is a vehicle safety feature. Thus, its restricted by variety of directives. However, the OMEs’ benchmark targets could be even more demanding as the deicing process is in addition also part of passengers comfort. From vehicle design point of view the wind-shield defrost system is typically connected to HVAC unit (Heating, Ventilation and Air Conditioning). In the technical solution the windshield is heated via hot air convection. Nevertheless, other methods are becoming more and more popular, like directly heated glass by hot wire ohmic heating (heated glasses). The defrost CFD model should predict the ice layer thickness in time and space and in environmental conditions defined according to appropriate directives and technical solution. The accurate and fast modelling technique is essential part of a vehicle development, especially nowadays, where the optimization techniques area widely used and requires hundreds of simulations runs. Modelling requests are even increasing with modern pure electric vehicles (EVs), were the thermal and energy management is more demanding compared to the classical internal combustion engine (ICE) vehicles. The aim of the work is to verify possibility to model the ice layer thickness with simplified approach, which could be beneficial from computational time burden.
Źródło:
Production Engineering Archives; 2019, 25; 8-11
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thickness of mineral covers on the ice - cored moraine and an active layer of permafrost on the western coast of the Oscar II Land (Svalbard)
Autorzy:
Grześ, M.
Powiązania:
https://bibliotekanauki.pl/articles/294302.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
thickness of mineral
ice-cored moraine
active layer of permafrost
Oscar II Land
Svalbard
Źródło:
Landform Analysis; 2007, 5; 135-136
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In-situ automatic observations of ice thickness of seas
Autorzy:
Dou, Y.
Chang, X.
Powiązania:
https://bibliotekanauki.pl/articles/221894.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ice thickness
observation
MDL
resistance
capacitive induction
Opis:
Ice thickness is one of the most critical physical indicators in the ice science and engineering. It is therefore very necessary to develop in-situ automatic observation technologies of ice thickness. This paper proposes the principle of three new technologies of in-situ automatic observations of sea ice thickness and provides the findings of laboratory applications. The results show that the in-situ observation accuracy of the monitor apparatus based on the Magnetostrictive Delay Line (MDL) principle can reach š2 mm, which has solved the "bottleneck" problem of restricting the fine development of a sea ice thermodynamic model, and the resistance accuracy of monitor apparatus with temperature gradient can reach the centimeter level and research the ice and snow substance balance by automatically measuring the glacier surface ice and snow change. The measurement accuracy of the capacitive sensor for ice thickness can also reach š4 mm and the capacitive sensor is of the potential for automatic monitoring the water level under the ice and the ice formation and development process in water. Such three new technologies can meet different needs of fixed-point ice thickness observation and realize the simultaneous measurement in order to accurately judge the ice thickness.
Źródło:
Metrology and Measurement Systems; 2012, 19, 3; 583-592
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grubość pokrywy lodowej wybranych jezior o genezie eolicznej, krasowej i rzecznej w województwie świętokrzyskim
Ice cover thickness of selected aeolic, karst and river lakes in Świętokrzyskie Voivodeship
Autorzy:
Zieliński, Artur
Choiński, Adam
Powiązania:
https://bibliotekanauki.pl/articles/43348466.pdf
Data publikacji:
2021-12-15
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Tematy:
aeolian lakes
karst lakes
river lakes
the thickness of the ice cover
Opis:
The research covered three genetic groups of lakes (karst, aeolian, and riverine) which occur in Świętokrzyskie Voivodeship. Depending on the specific group, the lakes have different morphometric parameters of the lake basin and the water catchment area as well as physical and chemical properties of the water. In winter 2021, after a wave of severe frost, the thickness of the ice was measured on a selected number of lakes. The results of the tests indicate a diverse thickness of the ice caps. Karst lakes had the thickest ice caps. Riverine and aeolian lakes, on the other hand, featured similar thickness of the ice. However, it was noticed that in the case of riverine lakes, the ice cap on shores with prevailing reed was thinner than in the central parts of the lake.
Źródło:
Badania Fizjograficzne Seria A - Geografia Fizyczna; 2021, 12 (72); 191-201
2081-6014
Pojawia się w:
Badania Fizjograficzne Seria A - Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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