The reduced air pressure under a vehicle that allows the normal pressure above the vehicle to push the vehicle downward, providing a better grip on the road surface.
Reaction of a rotor downdraft against the ground surface, forming a "ground cushion" that increases lifting capability of that section of air.
Type of down force that is generated by a special formed underside of a racecar. Is the most effective like an upside-down aircraft wing, this increases the speed of air flowing under the car, and thereby generating a suction effect.
The aerodynamic force caused by the reduction of induced drag and resulting in an increase in normal lift for an aircraft flying in close proximity to the surface of the ground or water. Fr: effet de sol
The phenomenon that occurs when air passes over an object (such as a spoiler) that causes the airflow to exert downward pressure (forcing it toward the ground) for improved handling and better traction. Also referred to as downforce, this process takes place at or above normal highway speeds.
It suggests a creation of downforce because of the airflow between a moving object and the ground.
A beneficial increase in lift near the ground. Readily apparent when the rotor height is one-half of the rotor`s diameter over the ground. Less power engine power required due to the air being thrust downward to meet the ground. This denser air is partially trapped beneath the rotor disk.
Described as an increase of performance within 1/2 rotorspan of the ground. Which means, near the ground your blades produce more lift. more.
The temporary gain in lift during flight at very low altitudes caused by the compression of the air between the wings of an airplane and the ground
It's a type of downforce that is generated by a special formed underside of a race car.
The effect of ground interference on the airflow patterns around an aircraft when the aircraft is close to the ground.
apparent increase in aerodynamic lift experienced by an aircraft flying close to the ground
The aerodynamic modification of the airflow beneath a vehicle caused by its close proximity to the ground. This increases the speed of the airflow, and reduces the pressure due to Bernoulli's principle. All cars operate in ground effect, though not all exploit the effect beneficially.
Now outlawed by FIA but in the period 1980 to 1982 virtually all cars were built in this way. The car had an underbody shaped like an inverted wing which almost sucked the car on to the track and gave tremendous grip.
A phenomena experienced when very close to the ground that produces a cushioning effect that allows the airplane to remain airborne at lower than normal speeds when at an altitude which is equivalent to less than the wing span of the airplane. Ground effect occurs as a result of the ground interfering with wingtip vortices and reducing downwash and induced drag.
tendency of a glider to glide farther when flying close to the ground.
This describes the nature of airflow near the ground. In airplanes, this refers to a cushion of air that builds up as a plane nears the ground. In racecars, this refers to artificially-generated low-pressure areas underneath the car which help it adhere to the ground. This is done by use of three-sided ground-effect 'tunnels' on each side of the bottom of the car, which start off small near the front and gradually get bigger towards the rear, creating a vacuum as the car moves forward using the ground as the fourth side of the tunnel. This is carefully managed by teams, using rules which specify the dimensions of the tunnels and how high the outside edge of each tunnel must be from the ground. The greater the gap between the tunnel side and the ground, the more vacuum escapes and the less down force is generated.
The response from the earth. A common calibration procedure in many geophysical surveys is to fly to altitude high enough to be beyond any measurable response from the ground, and there establish base levels or backgrounds.
The phenomenon that occurs when the airflow between a moving object and the ground creates downforce.
Down force that is generated by vehicle due to its close proximity to the ground and the shape of its underside.
