Computational Fluid Dynamics
CFD allows you to design, develop and test a product or part without the need to physically produce a prototype that may be flawed and need to be redeveloped.
Benefits
- Foresee the performance early
- Forecast the most effective changes
- Performance data becomes available
- Suitable for complex flow systems
- Cost effective
Identify the problem
Our extensive experience in Fluid Dynamics and Thermo Dynamics allows us to advise, design, analyse and develop for a range of applications.
3D CAD Models can be 3D Printed for further workshop and wind tunnel testing for validation and development.
Faster & cheaper
CFD offers a fast and cheaper method to develop parts and products, aiding the production process. Having the design already in a 3D CAD format, it is ideal for Computer Aided Manufacturing (CAM).
CFD Process
The 3D models of components are created and materials are specified. Opening and surfaces are detailed.
The components are imported into the CFD program. During preprocessing, the model geometry (physical bounds) for the problem is defined, and materials are adopted. The volume occupied by the fluids is divided into discrete cells (called the mesh). The mesh may be uniform or non-uniform, and even adapted during analysis to concentrate on areas of higher activity.
The physical modeling is defined – for example, the equations of motion + enthalpy + radiation + species conservation Boundary conditions are defined. This involves specifying the fluid behaviour and properties at the boundaries of the problem. For transient problems, the initial conditions are also defined.
The simulation is started and the equations are solved alliteratively as a steady-state or transient.
Finally a post-processor is used for the analysis and visualization of the resulting solution.
Here we are looking at how effectively the negative pressure is created v’s the drag generated. Ideally used to create effective down force. Flow can be easily seen via the traces present. Using CFD process helped determine the drag and pressure differentials that verify the resulting down.
Fluid Dynamics problems may be dealt with in a variety of ways. We begin with calculations and drawings to establish the problem at hand. CFD is ideal for dealing with complex flow and energy problems, as calculating the process may exhaust a lot of time.
Bernoulli's principle
This formula satisfies the Energy Conservation Law. Many variations from this formula have evolved to deal with specific problems, but all satisfy the Conservation Law.
The formula states:
Initial Potential Energy(PE) + Initial Kinetic Energy(KE) + Energy or Power Inputs = Final Potential Energy +Final Kinetic Energy + Energy Extracted + Losses
How can CFD help you?
Find out how we can use CFD among our other skills to help test, develop and optimise your idea.