CFD ANALYSIS

- Computational information from immeasurable phenomena -

Computational fluid dynamics, CFD, is a versatile tool that provides a vast amount of information with one simulation. Phenomenon of interest could be heat transfer, mass transfer, flow fields, flow resistances, pressure impulses, phase changes, mixing, reaction speed, burning, precipitation, deformation of structure or solidification. Number of phases can be one or more. Some examples on flow simulation are presented below.

CFD can be used as:

  • Part of product development process
    CFD offers versatile possibilities as a part of a product development process. Stressfield Oy offers its customers competent, reliable and motivated partner in product development. Read more: Product development services

  • Part of problem solving procedure
    It is not always obvious, what is the reason why an equipment is not working as it should be. CFD provides us detailed information from inside the equipment that is usually invisible for us. Measurements give us some insight on what is happening. CFD simulations can provide us information on why. When we understand the phenomena behind the problems it is easier to modify the situation to the right direction.

  • Optimization tool for equipment and process line sizing
    CFD is a useful tool also in equipment and process line sizing and optimization. Although there is very good tools in various process design handbooks for equipment sizing (Balance calculation), computational fluid dynamics can be a useful tool to ensure, for example, even distribution of heat of flow.

CFD results can be presented as illustrative temperature, pressure, velocity and phase/particle distributions. Also vector fields and streamlines offer a clear visual demonstration of the simulated phenomena. Results can also be translated into numerical values to help result comparison. For example average flow rate, pressure or temperature, total pressure loss, local flow resistances, impeller power number and reaction/burning rate. In addition CFD can be used to evaluate dynamic phenomena such as how long mixing, heating/cooling or tank emptying sequence takes. And above all, how the planned innovation effect the functionality of the equipment.

Virtauslaskenta - Nopeusjakauma keskipakopuhaltimessa, jossa taaksepäin kaareutuvat siivekkeet

Velocity distribution in a centrifugal blower
with backward curved blades
Virtauslaskenta -  Palamisnopeus [kg/s] hiilipolttimessa
Burning rate [kg/s] in a carbon burner

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