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Top: Lateral view; the red circles mark the front air dam/splitter and rear diffuser. Bottom: Rear. A diffuser, in an automotive context, is a shaped section of the car rear which improves the car's aerodynamic properties by enhancing the transition between the high-velocity airflow underneath the car and the much slower freestream airflow of the ambient atmosphere.
Xu has made important contributions to the three-dimensional aerodynamic design and turbomachinery research. He is one of the foremost pioneers of the three-dimensional centrifugal compressor impeller, diffuser design, axial compressor blade design, turbine blade, turbine endwall optimization with efficiency and cooling effectiveness, and gas ...
This design amplifies the positive effects of a normal diffuser shroud to result in a more efficient diffuser. The brimmed exit hole creates stronger vortices than a regular diffuser, which means that the pressure difference is greater than it would be with a normal diffuser. [2] As a result, wind is able to reach higher speeds.
For as-cataloged diffuser performance, a straight section of duct needs serve a diffuser. An elbow, or kinked flex duct, just before a diffuser often leads to poor air distribution and increased noise. Diffusers can be as a shape of round, rectangular, or can be as linear slot diffusers (LSDs).
The Ferrari F40 sports car has "NACA style" side and hood scoops.. It is especially favored in racing car design. [4] [5] Sports cars featuring prominent NACA ducts include the Ferrari F40, the Lamborghini Countach, the 1996–2002 Dodge Viper, the 1971–1973 Ford Mustang, the 1973 Pontiac GTO, the 1979 Porsche 924 Turbo, the Maserati Biturbo, the Nissan S130, and the Porsche 911 GT2.
Automotive aerodynamics is the study of the aerodynamics of road vehicles. Its main goals are reducing drag and wind noise, minimizing noise emission , and preventing undesired lift forces and other causes of aerodynamic instability at high speeds.
The visible cone is a supersonic diffuser with a requirement for low loss in total pressure, and the rear, streamlined part, together with the internal surface profile of the duct, forms the subsonic diffuser, also with a requirement for low loss in total pressure as the air slows to the compressor entry Mach number.
By utilising the integrated aerodynamic fan, the T.50 can suck the air under the car at a 90-degree angle and provide a significant increase in overall downforce as it provides a laminar flow of air passing over the rear diffuser, thus, creating a greater level of suction in tandem with the Venturi effect, created underneath the car, ahead of ...