aerodynamics - Is there ground effect flying below an infinite 2D plane as opposed to above one? - Aviation Stack Exchange

People talk about wing tip vortices and say things like the ground acts as an aerodynamic mirror. What (if any) difference would there be for a wing flying underneath a 2D plane? As in the picture

Could the ground effect be exploited more? - Quora

aerodynamics - What is the difference between ground effect for an infinite wing and for a finite wing? - Aviation Stack Exchange

Could the ground effect be exploited more? - Quora

Does an aircraft with one set of wings generate the same amount of lift as an aircraft with wings stacked vertically that equal up to the same surface area? - Quora

September 2021 - U.S. Edition in English by AgAir Update - Issuu

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Aerodynamics in Flight

Does an aircraft with one set of wings generate the same amount of lift as an aircraft with wings stacked vertically that equal up to the same surface area? - Quora

Modern problems of aircraft aerodynamics, Advances in Aerodynamics

Fuel Consumption Mitigation of Aircraft by Applying Astonishing Ideas

aerodynamics - Can we borrow Formula One's ground effect for airplanes? - Aviation Stack Exchange

about ground effect - General Discussion - IL-2 Sturmovik Forum

fluid dynamics - What really allows airplanes to fly? - Physics Stack Exchange

seaplane - Were stub wings on early flying boats designed or able to exploit ground-effect lift? - Aviation Stack Exchange