Author: Francis Kimani GatheriPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 592
Book Description
Numerical Simulation of Turbulent Natural Convection in an Enclosure
Author: Francis Kimani GatheriPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 592
Book Description
The Numerical Simulation of Turbulent Natural Convection in a Rectangular Enclosure Using K-[epsilon] and K [epsilon]/ASM Turbulence Models
![The Numerical Simulation of Turbulent Natural Convection in a Rectangular Enclosure Using K-[epsilon] and K [epsilon]/ASM Turbulence Models PDF](https://books.google.com/books/content/images/frontcover/mgNNNwAACAAJ?fife=w80-h100)
Author: Douglas James SilvaPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 428
Book Description
Direct Numerical Simulation of Turbulent Natural Convection Bounded by Differentially Heated Vertical Walls
Author: Chong Shen NgPublisher:
ISBN:
Category : Flow visualization
Languages : en
Pages : 107
Book Description
Numerical Simulation of Transient Natural Convection in a Thermally Stratified Rectangular Enclosure
Author: Panayiotis S. TheodossopoulosPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 266
Book Description
Buoyancy-induced Flows and Transport
Author: Benjamin GebhartPublisher: CRC Press
ISBN: 9780891164029
Category : Art
Languages : en
Pages : 594
Book Description
Numerical Simulation of Natural Convection in an Enclosure Partly Filled with a Porous Medium Saturated with a Nanofluid
Author: Basil M. H. SrayyihNumerical Simulation of Natural Convection in Rectangular Enclosures of Varying Aspect Ratios and Its Feasibility in Environmental Impact Management Studies
Author: Charles Randall WalkerPublisher:
ISBN:
Category : Buildings
Languages : en
Pages : 150
Book Description
Author's abstract: Numerical simulation was used to investigate natural convection in horizontal and vertical enclosures with and without an internal heat source. Natural convection in rectangular enclosures is found in many real-world applications. Included in these applications are the energy efficient design of buildings, operation and safety of nuclear reactors, solar collector design, passive energy storage, heat transfer across multi-pane windows, thermo-electric refrigeration and heating devices, and the design-for-mitigation of optical distortion in large- scale laser systems. Considering all these applications, especially controlling heat transfer in nuclear power plants, knowledge and research results of natural convection in enclosure play a vital role in environmental impact management studies. This study simulated horizontal enclosures heated from below (configuration 1) and vertical enclosures heated from the side (configuration 2) with a variety of different aspect ratios (AR) and Rayleigh numbers (Ra). Each aspect ratio (1, 2, 4, 6, 8, and 10) was examined using different sets of Rayleigh numbers. The first numerical experiment used only external Rayleigh number (RaE = 2×104, 2×105, and 2×106) which simulated natural convection in enclosures for outside temperature gradient only. The second case used a constant external Rayleigh number (RaE = 2×105) with a changing internal Rayleigh number (RaI = 2×104, 2×105, and 2×106). The third simulation used a constant internal Rayleigh number (Ra I = 2×105) and a changing external Raleigh number (RaE = 2×104, 2×105, and 2×106). All three cases were simulated for each configuration and at each aspect ratio. The streamline and isotherm flow patterns were created to reflect each case. The average heat flux ratio and convection strength were also calculated. Tests with the external temperature gradient only confirmed previous studies. There were many notable outcomes in this study which are discussed in the main body of this thesis work. When RaE> RaI, the results were similar to the study with a varying external Rayleigh number (RaE) and no internal heat source.
A Wave Equation Approach to Numerical Simulation of Natural Convection in Rectangular Enclosures
Author: Kehinde Omobola LadipoPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 242
Book Description
Turbulent Natural Convection in an Cubical Enclosure
Author: Peter Ndung'uPublisher: LAP Lambert Academic Publishing
ISBN: 9783659406546
Category :
Languages : en
Pages : 76
Book Description
Natural convection flows are applicable to many engineering applications such as cooling of electronic packages, buildings and ventilation etc. Their accurate prediction ensures economical designs and sustainability of the created objects even though practical flows occur at Ra 10 DEGREES10. The enclosure is heated steadily from below and cooled at the top while the rest of the side-walls are treated to be adiabatic. The fluid is constantly passed through a fixed inlet and an outlet on the opposite side. The standard k-e model is applied to cater for the turbulent kinetic energy and its rate of dissipation. Finite difference method was applied to the equations and they were iteratively solved to analyze the effects of magnetic field on velocity, temperature distribution and heat transfer within the enclo
Validation of Computational Fluid Dynamics Simulations of Turbulent Heat Transfer Associated with the Hot Soaking Phenomenon
Author: Takesha SattiewhitePublisher:
ISBN:
Category : Computational fluid dynamics
Languages : en
Pages : 348
Book Description