Computational Analysis of Natural Ventilation Flows in Geodesic Dome Building in Hot Climates
Abstract
:1. Introduction
2. Literature Review
3. Computational Modelling
3.1. Model Geometry
3.2. Computational Mesh Design
3.3. Sensitivity Analysis
3.4. Convergence of Solution and Conservation of Property
3.5. Method Validation
3.6. Boundary Conditions
3.7. Case Study Location
3.8. Measurement of Indoor Velocity and Temperature
4. Results and Discussion
4.1. Wind-Induced Flows
4.1.1. Velocity Distribution (Wind-Induced Flows)
4.1.2. Temperature Distribution (Wind-Induced Flows)
4.2. Buoyancy-Induced Flows
4.2.1. Velocity Distribution (Buoyancy-Induced Flows)
4.2.2. Temperature Distribution (Buoyancy-Induced Flows)
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
Abbreviations
ABL | Atmospheric Boundary Layer |
CFD | Computational Fluid Dynamics |
FVM | Finite Volume Method |
HVAC | Heating, Ventilation and Air-Conditioning |
RANS | Reynolds-Averaged Navier-Stokes |
SIMPLE | Semi-Implicit Method for Pressure-Linked Equations |
TKE | Turbulence Kinetic Energy |
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Specification | Dimensions |
---|---|
Base Diameter at A | 13.70 m |
Height at C | 2.41 m |
Height at B | 9.06 m |
Height of Riser D | 0.33 m |
Entrance Opening E | 5.46 m |
Floor area at base | 143 m2 |
Roof area | 329 m2 |
Volume | 864 m3 |
Parameter | Dimensions |
---|---|
Geometry | Solid zone |
Enclosure | Fluid zone |
Turbulence Model | Standard k-epsilon |
Near-Wall Treatment | Standard Wall Functions |
Velocity Formulation | Absolute |
Velocity Inlet | ABL Profile (see Section 3.6) |
Pressure Outlet | Atmospheric |
Temperature Inlet | see Temperature in Section 3.6 |
Solver Type | Pressure-Based |
Time | Steady |
Gravity | −9.81 m/s2 |
Points | X [m] | Y [m] | Z [m] | ||
Lower Floor | 1 | −3.6 | 3.6 | 1.2 | |
2 | 0 | 3.6 | 1.2 | ||
3 | 3.6 | 3.6 | 1.2 | ||
4 | −3.6 | 0 | 1.2 | ||
5 | 0 | 0 | 1.2 | ||
6 | 3.6 | 0 | 1.2 | ||
7 | −3.6 | −3.6 | 1.2 | ||
8 | 0 | −3.6 | 1.2 | ||
9 | 3.6 | −3.6 | 1.2 | ||
Upper Floor | 11 | −3.6 | 3.6 | 4.2 | |
12 | 0 | 3.6 | 4.2 | ||
13 | 3.6 | 3.6 | 4.2 | ||
14 | −3.6 | 0 | 4.2 | ||
15 | 0 | 0 | 4.2 | ||
16 | 3.6 | 0 | 4.2 | ||
17 | −3.6 | −3.6 | 4.2 | ||
18 | 0 | −3.6 | 4.2 | ||
19 | 3.6 | −3.6 | 4.2 |
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Share and Cite
Soleimani, Z.; Calautit, J.K.; Hughes, B.R. Computational Analysis of Natural Ventilation Flows in Geodesic Dome Building in Hot Climates. Computation 2016, 4, 31. https://doi.org/10.3390/computation4030031
Soleimani Z, Calautit JK, Hughes BR. Computational Analysis of Natural Ventilation Flows in Geodesic Dome Building in Hot Climates. Computation. 2016; 4(3):31. https://doi.org/10.3390/computation4030031
Chicago/Turabian StyleSoleimani, Zohreh, John Kaiser Calautit, and Ben Richard Hughes. 2016. "Computational Analysis of Natural Ventilation Flows in Geodesic Dome Building in Hot Climates" Computation 4, no. 3: 31. https://doi.org/10.3390/computation4030031