Induced drag of ground effect-vehicle

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SUMMARY

The discussion centers on calculating the induced drag of a ground effect vehicle (GEV) operating in a "100% ground effect" scenario, where the wing end plates and trailing edge are positioned just 1mm above a flat surface. Participants explore the implications of zero airflow beneath the wing and the resulting stagnation pressure. Key questions arise regarding the calculation of induced drag in this unique aerodynamic environment, particularly when comparing the GEV to a static object in a moving fluid.

PREREQUISITES
  • Understanding of aerodynamic principles, specifically induced drag
  • Familiarity with ground effect phenomena in aviation
  • Knowledge of fluid dynamics and static versus dynamic fluid interactions
  • Experience with computational fluid dynamics (CFD) tools for drag analysis
NEXT STEPS
  • Research methods for calculating induced drag in ground effect vehicles
  • Explore computational fluid dynamics (CFD) simulations for GEV analysis
  • Study the effects of stagnation pressure on aerodynamic performance
  • Investigate the comparison of static and dynamic fluid scenarios in aerodynamics
USEFUL FOR

Aerospace engineers, aerodynamicists, and students studying fluid dynamics who are interested in the unique characteristics of ground effect vehicles and induced drag calculations.

Jurgen M
Model ground effect-vehicle shape like on picture fly above flat surface like floor sports hall or ice, wing end plates and trailing edge is so close to the ground(1mm) we can assume airlfow under the wing is zero and has stagnation pressure("100% ground effect").
How to calculate induced drag?

(Dont debate about stability,tail/rudder will fix this.I want analyze induced drag only for wing)
Untitledju.png


Here is some models
 
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Jurgen M said:
How to calculate induced drag?
If there is no flow around the tip of the wing, then how can there be an induced drag ?
 
How would you calculate the drag of a bump, of the same shape and size, on the same flat surface, which has actually no air flow under it? An object moving in a static fluid is the same as a static object within a moving fluid.
 

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