Computational Fluid Dynamics Suite

Applying the most appropriate CFD code using proven techniques

Because MIRA is independent of code vendors MIRA's aerodynamicists and thermal management engineers are able to use the most appropriate tools for the the job.

All of the CFD codes and techniques we apply have been rigorously tested and, where possible, correlated with physical tests.  We use the following tools, often in combination, to quickly deliver accurate results:

1D Powertrain Simulation

These tools enable detailed engine, powertrain and vehicles to be modeled and operated virtually.  In addition to performance and acoustic predictions and cycle analysis for fuel economy and emissions, we use these tools for engine heat management and cooling system analysis.

1D Network Analysis

Systems such as the cooling circuit and HVAC systems can be often be modelled using 1D network analysis tools.  MIRA has particular expertise at applying these tools and have worked closely with some of the code developers to ensure they have the necessary features and accuracy for application in industry.

Radiation and Heat Transfer Calculations

MIRA's thermal management engineers use a proprietary thermal simulation tool to conduct steady state and transient heat transfer predictions.

3D CFD Simulation

There are several 3D CFD codes available which, although they offer different features and algorithms ultimately are based on the Stokes-Navier equations (published by Claude-Louis Navier and George Gabriel Stokes in 1822).  These equations describe the motion of liquids and gases.  CFD is the use of powerful computer hardware and software to perform millions of these calculations to predict the interaction of fluids with often complex surfaces.  We are particularly interested in understanding:

• Aerodynamic characteristics; drag, lift, forces and moments
• Flow rates
• Pressures
• Heat transfer (convection, conduction, radiation)

Example applications:

• Underbonnet airflows
• Exhaust and air-induction systems
• Catalytic converters
• Brake cooling
• Heat shields
• Ducts and registers
• Heat exchangers
• Simulation of windshield defrosting