Solar Radiation at Different Hours CFD Simulation

Solar Radiation at Different Hours: Discrete Ordinates (DO) Radiation Model Simulation

Dive into the complex world of solar radiation dynamics with this advanced episode from our “Radiation: All Levels” course. Master the application of the Discrete Ordinates (DO) radiation model using ANSYS Fluent to simulate the intricate effects of solar radiation on urban environments at different times of the day.

Project Overview

This cutting-edge simulation explores the impact of solar radiation on a urban setting, focusing on the variations between morning and afternoon conditions. You’ll gain profound insights into how solar angles, intensities, and geographical locations influence heat distribution and thermal comfort in built environments.

Key Simulation Components

1. Geometry and Mesh

- 3D model of an urban environment including houses, trees, and surrounding terrain - High-fidelity unstructured mesh with 2,054,294 cells for precise results

2. Physics Models

- Discrete Ordinates (DO) radiation model for comprehensive radiation analysis - Solar Ray Tracing for accurate solar position and intensity calculations - Coupled heat transfer modeling including conduction, convection, and radiation

3. Simulation Parameters

- Geographical focus: Baku, Azerbaijan - Time points: June 21st at 8 AM and 3 PM - Ambient conditions: 10 m/s free air velocity, 27°C ambient temperature - Material properties for soil, brick (houses), and wood (trees)

Simulation Setup and Methodology

Learn to configure:

• DO radiation model parameters in ANSYS Fluent
• Solar Ray Tracing inputs for specific location, date, and times
• Material properties and boundary conditions for diverse urban elements
• Coupled heat transfer settings for comprehensive thermal analysis

Results and Analysis

Gain insights through detailed visualizations of:

• Temperature distributions across the urban landscape
• Radiation heat flux patterns on various surfaces
• Comparative analysis between morning (8 AM) and afternoon (3 PM) conditions
• Identification of thermally safe zones and shaded areas

Key Findings

• Maximum temperature difference of 6°C between morning and afternoon
• Morning maximum temperature: ~312 K (39°C)
• Afternoon maximum temperature: ~318 K (45°C)
• Shaded areas maintain consistent radiation flux (50-70 W/m²) despite time changes

Why This Episode Is Crucial

• Master the application of DO radiation model in complex urban environments
• Understand the daily variations in solar radiation impact on built structures
• Develop skills in urban heat island effect analysis and mitigation strategies
• Learn to optimize urban planning for thermal comfort and energy efficiency

Target Audience

This episode is ideal for:

• Urban planners and architects focusing on sustainable city design
• Environmental engineers specializing in urban heat management
• CFD specialists in the building and construction industry
• Researchers in climate-responsive urban development

Elevate Your CFD Skills with Advanced Solar Radiation Modeling

This episode offers a unique opportunity to apply the Discrete Ordinates radiation model to a realistic urban scenario. By mastering this simulation, you’ll be equipped to tackle a wide range of challenging CFD problems involving solar radiation, urban heat transfer, and microclimate analysis.

Key Learning Outcomes

• Understand the principles and applications of the DO radiation model
• Master the setup of solar radiation simulations for different times of day
• Learn to interpret and analyze the impact of solar angles on urban heat distribution
• Develop skills in identifying and designing thermally comfortable urban spaces

Practical Applications

The skills gained from this episode are directly applicable to:

• Urban heat island mitigation strategies
• Energy-efficient building design and orientation
• Public space comfort optimization
• Solar energy potential assessment in urban areas

Don’t miss this opportunity to enhance your simulation capabilities and contribute to the advancement of sustainable urban design and climate-responsive architecture. Enroll now and take your CFD expertise to the next level with this essential Discrete Ordinates radiation modeling episode!