A vertical wind tunnel for raising persons by use of air flow, comprising a flight platform (1), an air flow generating device (2) associated with the flight platform (1) and generating a vertical air flow through a channel (3) arranged in a middle of the flight platform (1). The flight platform (1) comprises a safety mattress (4) positioned around the channel (3); a net assembly (5) comprising a flexible net ring (6) and a net (7). The flexible net ring (6) is positioned around the channel (3) and above the safety mattress (4). The vertical wind tunnel further comprises an upholstery ring (8) arranged above the flexible net ring (6) for further absorption of impacts. The present invention increases a safety of its users effectively absorbing impacts of falling flyers.

Invention relates to an open vertical wind tunnels for simulating a free fall sky diving. An open vertical wind tunnel comprising: a frame structure (1), a power unit (2) and a fan assembly (3); a flow straightening assembly (4) comprising a vertical cylindrical housing (42) to be mounted above and coaxially with the propeller (3); a central cone (43) disposed within and coaxially with the vertical cylindrical housing (42); a plurality of radially oriented vertically disposed guide vanes (44), where each guide vane (44) is configured to straighten an air flow and absorb created noise; a flight platform (5); and sound attenuating panels (6) arranged around the open vertical wind tunnel.

A cooling system for a wind tunnel is disclosed. The heat exchanger of the present disclosure is formed as a turning vane in an airflow duct of a re-circulating wind tunnels. The individual vanes are formed from extruded aluminum with coolant fluid channels running continually down the length of the vane. One or more channels can be used, depending on the application of vane and the cooling capacity needed. The exterior of the vanes are formed in an airfoil shape to efficiently turn the air flow the desired amount in a manner well known in the art. The turning vanes are connected to a fluid supply with single piece connectors that removably attach to the turning vanes. In the depicted embodiment the connectors are attached with screws. In the depicted embodiment the connectors are formed as a single piece in a two-piece injection mold.

A cooling system for a wind tunnel is disclosed. The heat exchanger of the present disclosure is formed as a turning vane in an airflow duct of a re-circulating wind tunnels. The individual vanes are formed from extruded aluminum with coolant fluid channels running continually down the length of the vane. One or more channels can be used, depending on the application of vane and the cooling capacity needed. The exterior of the vanes are formed in an airfoil shape to efficiently turn the air flow the desired amount in a manner well known in the art. The turning vanes are connected to a fluid supply with single piece connectors that removably attach to the turning vanes. In the depicted embodiment the connectors are attached with screws. In the depicted embodiment the connectors are formed as a single piece in a two-piece injection mold.

Invention relates to vertical wind tunnels, especially to open vertical wind tunnels and its safety features.

A vertical wind tunnel for raising persons by use of air flow, comprising a flight platform (1), an air flow generating device (2) associated with the flight platform (1) and generating a vertical air flow through a channel (3) arranged in a middle of the flight platform (1). The flight platform (1) comprises a safety mattress (4) positioned around the channel (3); a net assembly (5) comprising a flexible net ring (6) and a net (7). The flexible net ring (6) is positioned around the channel (3) and above the safety mattress (4). The vertical wind tunnel further comprises an upholstery ring (8) arranged above the flexible net ring (6) for further absorption of impacts. The present invention increases a safety of its users effectively absorbing impacts of falling flyers.

A vertical wind tunnel skydiving simulator including a flight chamber entrance that has a curved air deflector that extends into a waiting chamber, in which a convex surface of the curved air deflector faces across or towards the flight chamber entrance or into the flight chamber, and extends into the waiting chamber a sufficient distance to substantially reduce the flow of turbulent air into the waiting chamber. The curved surface is at the top of the entrance and can also be at the sides. The shape the curved surface takes is sufficient to minimize the flow of turbulent air into the waiting chamber; the effect is to make it more comfortable and less noisy for people in the waiting area. This also helps to preserves the laminar, non-turbulent flow of air in the flying chamber, even across the flight chamber entrance. This makes flying more comfortable and predictable.

A vertical wind tunnel skydiving simulator including a flight chamber entrance that has a curved air deflector that extends into a waiting chamber, in which a convex surface of the curved air deflector faces across or towards the flight chamber entrance or into the flight chamber, and extends into the waiting chamber a sufficient distance to substantially reduce the flow of turbulent air into the waiting chamber. The curved surface is at the top of the entrance and can also be at the sides. The shape the curved surface takes is sufficient to minimize the flow of turbulent air into the waiting chamber; the effect is to make it more comfortable and less noisy for people in the waiting area. This also helps to preserves the laminar, non-turbulent flow of air in the flying chamber, even across the flight chamber entrance. This makes flying more comfortable and predictable.

By manipulating the fluid flow in the proximity of an object such as a fuselage, a wing, or the hull of ship, the wave drag associated with this object can be substantially reduced. This can be accomplished by locally changing both the fluid flow velocity and the pressure of the fluid flow.

A wind tunnel for stable sustained human flight for research or recreation, including a tunnel including first and second portions having first and second central axes, respectively, and a fan to create an air flow in the test section. The second portion is a test section. The first and second central axes are arranged at a first angle with respect to each other. The second central axis is at a second angle of 5-85 with respect to a horizontal plane. A safety system for an inclined wind tunnel for stable sustained human flight is provided, including an inclined test section of the wind tunnel that is arranged at an angle of 5-85 with respect to a horizontal plane, a fan to create an air flow in the test section directed from an upstream end towards a downstream end thereof, and a delimiting arrangement arranged at the test section for preventing a person using the test section from leaving it.

A body flight simulator of quick and efficient assembly and operation, includes the ability of having multi-flight areas to facilitate the teaching and skill building of novice users, as well as the ability for performances of experienced users. In addition, it includes easy viewing by observers, noise reduction and minimized environmental impacts. Finally, the modular nature of the components, allow for the assembly of modular arena stages, capable of having elongated/widened body flight areas.