You've probably seen it on racing cars, airplanes or even on wind turbine blades. It is basically about aerodynamics and being able to change air resistance on moving things.

V-spoilers are small vortex devices that create swirling air patterns that improve aerodynamics and can create stability on vehicles.

Vortex generators are small “fins”, usually in the so-called wishbone shape, which are attached to e.g. a vehicle which thereby creates small eddies of air so that the vehicle does not get turbulence behind the vehicle. Turbulence behind the vehicle can mean that the vehicle must use between 30 and 50% of its energy on this drag (turbulence). It costs both in extra fuel and CO2 emissions, and the vortex generators eliminate this turbulence and make the resistance smaller, which of course means that the vehicle can save fuel and CO2.

How do these vortex generators work

On a vehicle such as a truck or van, the vortex generators are normally attached at the rear and/or on the roof. If you have a truck with both a tractor and a trailer, it is optimal to also put them at the back of the tractor, especially if there is also a gap between the tractor and the trailer, as this gap also creates wind resistance.

that is attached to the surface of a vehicle, usually near the rear or roof. They create eddies or eddies that interact with the boundary layer or the thin layer of air that adheres to the vehicle's surface. By creating vortices, vortex generators can delay or prevent the separation of the boundary layer, which can cause drag, turbulence and instability.

How do vortex generators reduce drag?

Turbulence or drag as it is called in the technical language is the force that opposes the movement of a vehicle. Besides taking power, it also reduces the stability of the vehicle.

A truck has many points on it that provide wind resistance, which means loss of power, fuel and CO2. There is the cab itself, but many people today use a roof spoiler to avoid wind resistance there. There are mudflaps and other things under or on the side of the car, but in the final phase most of the turbulence ends up behind the car, which creates the wind resistance that causes a loss of power. You have probably seen cyclists who want to lie behind a car in order to take advantage of being sucked in by the turbulence.

Quite simply, Vortex generators reduce the pressure difference by forming small vortices that throw the air further back, so that resistance and suction effect are reduced

Vortex generators provide the stability?

Stability is the ability of a vehicle to maintain its direction and attitude, even if it is exposed to external wind and weather.

In addition to the wind resistance from the front, one of the things that also affects stability is what is called lift. In other words, the force that pushes the vehicle up or down. Lifting is based on, among other things, vehicle shape, wind direction, air tightness. Changing the air flow on the surfaces using vortex generators can increase what is called the downforce on the rear end, which will prevent the vehicle from lifting and oversteer

even when subjected to external disturbances or forces. One of the factors that affect stability is lift, or the force that pushes the vehicle up or down. The lift is affected by the shape and angle of the vehicle as well as the speed and density of the air. Vortex generators can change the lift distribution on the vehicle by changing the airflow over the surface. For example, they can increase the downforce on the rear end, which can prevent the vehicle from lifting or oversteer.

How to install vortex generators?

Vortex generators are easy to install and the most important thing is that the adhesive tape used does not damage the surface of the vehicle. Not even if they are taken off again. It may be that you have a truck that you have leased, and thereby have to deliver it back again after the leasing period, then it must be delivered back in the best possible condition. Also in the paint.

V-Spoilers use top quality double-adhesive tape from 3M, which is also based on the same technology as when you e.g. wraps the car in foil advertisements. These must be able to be removed again without damaging the paint.

We are happy to advise you on how best to install V-Spoilers and where on the vehicle. https://www.v-spoilers.com/docs/installation.mp4