Computational Fluid Dynamics (CFD)
Computational Fluid Dynamics (CFD) is a computer simulation tool that creates a ‘virtual’ wind tunnel to predict the motion of fluids around objects. The three-dimensional space around a study building, including its surroundings, is divided into a large number of tiny volume elements. Each element possesses the physical attributes that describe a small section of the flow field.
The problem is fully defined with the assembly of elements, the definition of boundary conditions, and selection of starting conditions. CFD simulations – for an individual wind direction – generate the desired flow parameters such as pressure, velocity, temperature, and any other specified quantity of interest. Results are presented with various visualization tools, such as contour plots, iso-surfaces, and streamlines to describe the flow characteristics. By taking advantage of state-of-the-art advancements in high speed computing and parallel processing, the CFD technique is a powerful supplement to our physical wind tunnel, which together enable us to solve complex wind flow problems.
CFD has become one of our primary engineering services. It is a versatile and powerful tool that can be used to solve problems related to pedestrian level wind comfort, cladding pressures on buildings, snow drifting, and pollution dispersion.