b'Engineer Innovation | Automotivethat within a tunnel, wind moves overintroduce heat, which we cannot do in the car rather than the car movingthe wind tunnel, and illustrate over ground. thermal interaction. It tells us more about a specific design, indicating if it This area is where we have the leastis close to optimal. In short, the correlation between the physical andcomputational domain not only the computational, says Cusdin. Yetaugments the physical domain, it also we need to extract more from theimproves it.tires, for example, by placing geometry around the floor of the carIn one instance, members of the CFD in the best way possible forteam were looking to incorporate the aerodynamics performance. power of the fast-moving air from the exhaust to enhance downforce, but Revealing the physics of flow results on the track were CFD offers a design team insight intodisappointing. By further analyzing what happens in the wind tunnel. Itthe physics, they discovered that shows the precise airflow over the carmodeling the exhaust as a steady jet and tells us why we are getting certainrather than a series of pulses had results, says Cusdin. For example,inadvertently led Renault Sport simulation shows whether a vortex isFormula One Team designers down above the wing or below it. It canthe wrong path. CFD solved this CFD gives us significant direction and I anticipate expanding our use of Simcenter STAR-CCM+.Paul CusdinHead of CFDRenault Sport Formula One Team64'