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Wyszukujesz frazę "k– model" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Study of air flow pattern in mine model gallery and its validation using CFD modelling
Autorzy:
Biswal, P. K.
Parida, D.
Mishra, G.
Sahoo, A. K.
Powiązania:
https://bibliotekanauki.pl/articles/1066257.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
k– model
Opis:
Several turbulence models have been urbanized in the past decades, and many of them have been used in predicting airflows and turbulence in enclosed environments. It is vital to approximate the generality and heftiness of the turbulence models for various indoor airflow scenarios in various sections. The present work developed the geometry of the mine model gallery using CATIA version V5R20. It carried out air flow simulation for different inlet velocities and studied the air flow velocity through the section by grid section method and traverse method. An artificial flow regulator was created to study the flow behaviour and calculated Reynolds’s no at bends and turns to characterize the air flow. In this model the turbulence has also been calculated and the zone of turbulence is being located using Ansys fluent. The model was validated by comparing the results of the readings of the actual mine model gallery and by means of mass flow rate at different sections to establish a CFD model for mine gallery and validation of the results of flow behaviour, viz. air velocity, pressure profile, and determination of zone of turbulence of mine model gallery developed using Ansys 18.2.
Źródło:
World Scientific News; 2019, 130; 1-24
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of Design Model Constants for a Constructed Wetland with Palm Kernel Shell as Substrate for Slaughterhouse Wastewater Treatment
Autorzy:
Okoye, Nelson Mbanefo
Madubuike, Chimaobi Nnaemeka
Nwuba, Ifeanyi Uba
Powiązania:
https://bibliotekanauki.pl/articles/1161604.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Constructed Wetland
Eichhornia crassipes
Palm Kernel Shell
Physicochemical Parameters
Slaughterhouse Wastewater
Thalia geniculate
k-C* Model
Opis:
Design of horizontal subsurface flow constructed wetlands using the state of the art k-C* first order model requires the use of correct model constants to ensure that the design systems meets the required treatment standards. The aim of the study was to estimate the model constants for the design of a field scale horizontal subsurface flow constructed wetland to treat slaughterhouse wastewater using palm kernel shell as substrate. A 40 days column incubation was conducted and the model was fitted to experimental data. Rate constant (k20) values of 0.604/day, 0.623/day, 0.278/day, 0.323/day and 0.306/day were obtained for BOD, TSS, NH4-N, NO3-N and PO43-. Estimated model constants were compared to the universal values in the literature which revealed very significant variations in the obtained wetland surface area.
Źródło:
World Scientific News; 2018, 112; 153-164
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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