1. Remember, you also are in ground effect.

2. To take account of the ground effect, the conventional image method is used here.

3. Test data demonstrate that ground effect evidently strengthens plane's l ift and longitudinal stability.

4. The ground effect is one of the main difficulties in road vehicle aerodynamics.

5. At large height, the mechanism of ground effect is the interaction of jet induced by the hovering flight with the bottom surface.

6. Ground effect has the very tremendous influence on boundary layer thickness, and air drag with underhood enhances 12%.

7. That's ground effect, too.

8. A similar thing, called ground effect, can happen when an aircraft gets very close to ground.

9. The longitudinal stability of a ground effect craft is analyzed in the ocean wave environment.

10. The computed space meshes with ground effect of general propeller-driven aircraft are created with an unstructured mesh technology.

11. A similar thing, called ground effect,() can happen when an aircraft gets very close to the ground.

12. The results of the simulation show: ground effect has an influence on a car flow field, influence of the undcrhood on a car air drag is very obvious, and has some influences on the flow field.

13. This paper presented a new theory of high supercritical planning by wing - in - ground effect unloading technology.

14. Three-dimensional turbulent boundary layer on the ground board is measured through the ground effect tests of a delta wing with aspect ratio 3.

15. The theory of ground-effect vehicles goes back to the 1920s, when Carl Wieselsberger, a German physicist,[http:///ground effect.html] described how the ground effect works.

16. Image method ideal vortex model is used for the analysis of how ground effect impacts wingtip vortex and airflow downwash angle.

17. As the bottom of the van-body truck is considerably high, the influence of the ground boundary layer can be ignored in the wind tunnel simulation of ground effect.

18. During hover-pit testing, the aircraft is anchored to a metal grate 14 feet above a sloped concrete floor, separating the jet from ground effect and enabling it to simulate free-air flight.

19. The improved vortex lattice method is used to predict the ground effect on wake roll-up behind a lifting surface.

20. Then, the advantage and shortcoming of two recent methods of flight test for ground effect, and the technical problems in implementation, are review emphatically.