Aerodynamics are central to a modern racecar design, and NEWPAN has
the proven ability to give you the edge... Every F1 World Champion
since Nigel Mansell has benefitted from aerodynamics developed with
the help of NEWPAN.
Flow Solutions and its personnel have approaching 15 years experience
of the application of panel methods to racecar design. Chris Burkett,
one of the Company principals, was himself a Formula One
aerodynamicist in the late 1980's and, with Adrian Newey, then at
March-Leyton House, became interested in the application of CFD, most
especially to facilitate the design of front and rear wings. Reliance
upon scale model wind tunnel testing alone was clearly inadequate for
the understanding and optimisation of an aerodynamic problem as
complex as high downforce multi-element wing assemblies.
NEWPAN thus has a strong racing pedigree and has become the dominant
panel method aerodynamic software in Formula One (often complemented
by Navier-Stokes solvers). Every wing profile fitted to the cars of
a leading F1 Championship contender since 1992 has been designed using
NEWPAN (netting several world championships).
Customised to the Needs of the Racecar Aerodynamicist
The "car" version of NEWPAN, whilst sharing its core with the
aerospace version, provides the racecar designer with a customised
interface. Complete ride height maps can be generated in a single run,
from geometry dimensioned to the `O'-line. In other words - leave the
configuration in your usual CAD coordinate system and when running
NEWPAN simply specify the required series of front and rear ride
heights. Front and rear axle pitch rates may also be specified; these
model the effects of instaneous incidence changes seen by the car as
it bounces along a bumpy track.
Contemporary F1 geometries have been used to ensure satisfactory
modelling techniques in every area of the car, for instance radiator
and engine inlet modelling. Careful application of wake relaxation
and Trefftz plane analysis methods have ensured accurate and converged
solutions for lift and induced drag on complex high-lift assemblies
such as rear wings. NEWPAN has been successfully validated
against full scale Formula One test data.
The speed and ease of use of NEWPAN means that, for the first time,
the aerodynamic analysis of an entire racecar is not only viable, but
has become a routine part of the design process. With our background,
and continual feedback and method development in partnership with the
top Formula One teams, we have been able to develop the features
necessary to make this a reality.
Some examples of these unique features are given here:
- support for unstructured and hybrid surface grids, allowing very rapid model generation;
- easy, topologically based, wake prescription and advanced wake relaxation;
- advanced non-uniform onset flow specification, especially useful for
rear wing modelling;
- the inverse design of multi-element aerofoils in ground effect: "given the following desirable aerodynamic characteristics, what is the shape I require to
- strong viscous coupling for wing design, capable of accurate predictions up to and beyond Clmax for multi-element assemblies;
- aero-structural coupling for static aeroelastic analysis;
- 3D optimisation, as demonstrated through coupling NEWPAN to an optimiser;
NEWPAN is supplied with its own fully-featured pre- and post-
processors, GEMS and VIEWPAN. These enable seamless integration with
the design office CAD system, for the import of original surface
definitions, and the export of the new redesigned surfaces following a
NEWPAN design study.
Please refer to the following links for further information.
3D plot of rear wing pressures on a hybrid model
3D plot of pressure on an off body streamline
3D plot of pressure on a slice though the engine cover
Integrated pre- and post-processors
Streamline based boundary layer analysis on front wing assembly