Computational Fluid Dynamics (CFD) is a computer-based numerical flow model originally developed for the aerospace industry. With CFD software, the three-dimensional behavior of air and fluid flow, as well as heat and mass transfer, can be clearly visualized. Computational Fluid Dynamics simulations provide in-depth analysis of fluid flow characteristics, and physical and chemical processes such as combustion or dispersion.
Computational Fluid Dynamics software has the potential to solve extremely complex problems that could take untold hours to complete via hand calculations. The capabilities of the software are impressive, and the output provides easily understood visual flow patterns.
For new construction or renovation projects, CFD can be used to design the most energy efficient HVAC system. Vents can be strategically placed within a room to ensure optimal heating and cooling. HVAC systems in hospitals can be designed to reduce the likelihood of patient and doctor infection through exposure to airborne pathogens.
Venture Engineering & Construction was recently commissioned to investigate the source of food odors in a courthouse. It was found that under certain wind conditions, the outside exhaust from a nearby kitchen would blow directly into the intake vent for the building. In this case, CFD was used to identify the cause of the problem and to design an optimum solution.
Computational Fluid Dynamics can be used to evaluate noises, stress/strain and resident’s discomfort resulting from wind loads. Venture was hired to determine the cause of noise in the elevator shaft of the Wynn Hotel and Casino in Las Vegas, NV. Venture determined through CFD analysis that the noise was caused by a parapet on the roof of the building. A low pressure recirculation zone created a pressure difference across the elevator shaft and the resultant acoustics.
Computational Fluid Dynamics can significantly reduce uncertainty in planning and find the cause of existing problems. A few examples of uses include:
- determining the Residence Time Distribution in processing reactors,
- optimizing spatial air/fuel ratios to reduce NOx emissions,
- sizing heating and cooling chambers, and
- modeling particulate and gas dispersion from stacks.
Catastrophic CFD Analysis can model the dispersion of released gasses and fumes, the spread of fire, or heat transfer during equipment failures. Catastrophic CFD Analysis is a cost effective tool that can be used to model potential safety concerns relative to workers, the surrounding community, and the environment.
William A. Wright, Jr.
Manager of Engineering
(412) 231-5890 x322