Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Developing buoyant convection in vertical porous annuli with unheated entry and exit
The open‐ended vertical double‐passage annular space between three vertical concentric coaxial cylinders is an important physical configuration portraying many practical applications. Hence, in the present analysis, the developing buoyant convection in vertical double‐passage annuli filled with fluid‐saturated porous media is studied numerically by imposing unheated entry and unheated exit thermal boundary conditions. The numerical solutions of the mathematical model equations are found through finite difference technique. The velocity profiles in radial as well as axial directions and temperature profiles have been depicted for vast range of nondimensional numbers, baffle position, and heating and un‐heating ratio. The velocity and thermal gradients decreases as heating section length decreases. Maximum velocity and heat transport occurs in a narrow annular passage rather than equal or wider passages. The presence of porosity causes a reduction in flow velocities and thermal gradients.
Developing buoyant convection in vertical porous annuli with unheated entry and exit
The open‐ended vertical double‐passage annular space between three vertical concentric coaxial cylinders is an important physical configuration portraying many practical applications. Hence, in the present analysis, the developing buoyant convection in vertical double‐passage annuli filled with fluid‐saturated porous media is studied numerically by imposing unheated entry and unheated exit thermal boundary conditions. The numerical solutions of the mathematical model equations are found through finite difference technique. The velocity profiles in radial as well as axial directions and temperature profiles have been depicted for vast range of nondimensional numbers, baffle position, and heating and un‐heating ratio. The velocity and thermal gradients decreases as heating section length decreases. Maximum velocity and heat transport occurs in a narrow annular passage rather than equal or wider passages. The presence of porosity causes a reduction in flow velocities and thermal gradients.
Developing buoyant convection in vertical porous annuli with unheated entry and exit
N, Girish (Autor:in) / Sankar, M. (Autor:in) / Makinde, O. D. (Autor:in)
Heat Transfer ; 49 ; 2551-2576
01.07.2020
26 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
ENTRY/EXIT MANAGEMENT DEVICE AND ENTRY/EXIT MANAGEMENT METHOD
| Europäisches Patentamt | 2016
ENTRY/EXIT MANAGEMENT DEVICE AND ENTRY/EXIT MANAGEMENT METHOD
| Europäisches Patentamt | 2016
ENTRY/EXIT MANAGEMENT DEVICE AND ENTRY/EXIT MANAGEMENT METHOD
| Europäisches Patentamt | 2018
ENTRY/EXIT AUTHENTICATION SYSTEM AND ENTRY/EXIT AUTHENTICATION METHOD
| Europäisches Patentamt | 2019
ENTRY/EXIT MANAGEMENT SYSTEM AND ENTRY/EXIT MANAGEMENT METHOD
| Europäisches Patentamt | 2021