Advantages of Computational Fluid Dynamics Analysis for Design of Air Flow Systems

Knowing that a system or component design requiring efficient aerodynamics will perform as required is critical to customers to ensure production is maximized while maintenance and operating costs are minimized. Historically systems have been generically developed based on modifications of prior designs, experience, theoretical and empirical data; even though the physical installation and operational requirements are unique or fundamentally different to prior requirements. Using this form analysis can result in equipment that is over or under designed due to the assumptions used. These system designs are often perceived by customers to be a suitable solution, though at worst the equipment fails to meet the requirements or leads to higher life cycle costs through increased power consumption, low system efficiency and increased maintenance that compromises production and operating costs. 

The use of computational fluid dynamics (CFD) analysis removes the assumptions and calculation errors when determining the flow path and associated pressure and temperature through the system to provide the optimal design. 

The CFD model is created by use of a computer-generated conceptual design of the equipment that is transformed into a series of multiple three-dimensional grids. The model is then analyzed using scientifically known relationships to produce a visual analysis from which the engineer can introduce changes to the model that are reanalyzed to finalize the design for optimal the flow characteristics. 

The resultant analysis and design is achieved with total confidence of the actual real-world results in far less time than the traditional methods and with less design cost. The flow simulation is run by qualified engineers who are fully conversant with the methodology and interpretation of the resultant data given to determine the optimum design configuration. Costs are further saved since the detail design and manufacture proceeds knowing that there are no further changes required and that associated flow providing equipment selected need not be oversized to account for design “safety margins”. 

Where particulate is contained in the airflow, CFD analysis is indispensable as it identifies locations in the conceptual design where there is likely to be a build-up or partial blockage caused by deposits of the particulate that can be eliminated in the final design to improve flow efficiency and reduce maintenance.

VG Engineering Inc. have provided numerous flow system designs developed using CFD analysis and their engineer's expertise, that when installed have met their predicted performance in full compliance to the agreed specifications of satisfied clients.