fswiki.us - User contributions [en]

Airfoils

2020-05-19T02:56:32Z

Crsntrpk:

==Parts of an Airfoil==
===Leading Edge===
The leading edge of an airfoil is the first part of the airfoil in the free stream. It will change with the angle of attack (AoA) of the airfoil.
===Trailing Edge===
The trailing edge is the furthest rearward edge of the airfoil.
===Chord===
The chord of an airfoil is the distance from leading edge to trailing edge. It is measured by drawing a straight line from the LE to TE.
===Camber===
The camber of an airfoil measures its shape. The camber line is drawn from the leading edge to the trailing edge, staying equidistant from the top and bottom surfaces of the airfoil at each point. The camber at each point is thus the distance from the camber line to either the top or bottom surface of the airfoil. For a symmetric airfoil, the camber line and the chord line are the same.
==Additional Parts==
===Endplates===
In a standard wing with no endplates, the wing experiences induced drag due to the high pressure region above the wing coming around the edge to the low pressure region below the wing. This creates vortices and adds extra drag to the vehicle. In a plane, the aspect ratio of the wing can be increased to limit this effect (think about a glider, they frequently have really long wings with a short chord, increasing wing span while limiting wing area).

For our vehicles, we cannot extend our wings outside of our wheels, and thus need to find a different solution to limit our induced drag. Adding endplates physically prevents the high pressure and low pressure region from interacting, thereby reducing the drag generated from this effect. Sadly, endplates can generate their own drag through similar effects. The high pressure ambient air can "spill over" into the low pressure region captured inside the endplates, creating vortices and drag.

There are a few different methods to reducing this drag:
=====Louvers=====
Louvers are small cuts in the endplate, generally found above the mainplane and in front of the flaps. These cuts allow some of the high pressure air in this region to escape, which lowers the overall pressure in this area. Lowering the pressure can reduce the downforce generated, but can also reduce drag by limiting the strength of the created vortices.
=====Slats=====
Slats are generally found below the flaps and behind the mainplane, toward the rear bottom corner of the endplates. These slats allow some of the low pressure air to escape, thereby reducing the downforce and drag generated, similar to the louvers.
===Supports===
When designing supports, it is important to take into account deflection and adjustablity

[[Category:Body and Aero]]

Aerodynamic Basics

2020-05-19T02:49:32Z

Crsntrpk:

==Downforce==

[[Category:Body and Aero]]

Aerodynamic Basics

2020-05-18T22:17:59Z

Crsntrpk:

[[Category:Body and Aero]]

Aerodynamic Basics

2020-05-18T22:17:01Z

Crsntrpk: Created page with "Category:Body and Aero"

[[https://fswiki.us/Category:Body and_Aero|Category:Body and Aero]]

Airfoils

2020-05-18T22:08:19Z

Crsntrpk: /* Endplates */

==Parts of an Airfoil==
===Leading Edge===
The leading edge of an airfoil is the first part of the airfoil in the free stream. It will change with the angle of attack (AoA) of the airfoil.
===Trailing Edge===
The trailing edge is the furthest rearward edge of the airfoil.
===Chord===
The chord of an airfoil is the distance from leading edge to trailing edge. It is measured by drawing a straight line from the LE to TE.
===Camber===
The camber of an airfoil measures its shape. The camber line is drawn from the leading edge to the trailing edge, staying equidistant from the top and bottom surfaces of the airfoil at each point. The camber at each point is thus the distance from the camber line to either the top or bottom surface of the airfoil.

==Additional Parts==
===Endplates===
In a standard wing with no endplates, the wing experiences induced drag due to the high pressure region above the wing coming around the edge to the low pressure region below the wing. This creates vortices and adds extra drag to the vehicle. In a plane, the aspect ratio of the wing can be increased to limit this effect (think about a glider, they frequently have really long wings with a short chord, increasing wing span while limiting wing area).

For our vehicles, we cannot extend our wings outside of our wheels, and thus need to find a different solution to limit our induced drag. Adding endplates physically prevents the high pressure and low pressure region from interacting, thereby reducing the drag generated from this effect. Sadly, endplates can generate their own drag through similar effects. The high pressure ambient air can "spill over" into the low pressure region captured inside the endplates, creating vortices and drag.

There are a few different methods to reducing this drag:
=====Louvers=====
Louvers are small cuts in the endplate, generally found above the mainplane and in front of the flaps. These cuts allow some of the high pressure air in this region to escape, which lowers the overall pressure in this area. Lowering the pressure can reduce the downforce generated, but can also reduce drag by limiting the strength of the created vortices.
=====Slats=====
Slats are generally found below the flaps and behind the mainplane, toward the rear bottom corner of the endplates. These slats allow some of the low pressure air to escape, thereby reducing the downforce and drag generated, similar to the louvers.

===Supports===
When designing supports, it is important to take into account deflection and adjustablity

[[Category:Body and Aero]]

Airfoils

2020-05-18T22:07:52Z

Crsntrpk: /* Endplates */

==Parts of an Airfoil==
===Leading Edge===
The leading edge of an airfoil is the first part of the airfoil in the free stream. It will change with the angle of attack (AoA) of the airfoil.
===Trailing Edge===
The trailing edge is the furthest rearward edge of the airfoil.
===Chord===
The chord of an airfoil is the distance from leading edge to trailing edge. It is measured by drawing a straight line from the LE to TE.
===Camber===
The camber of an airfoil measures its shape. The camber line is drawn from the leading edge to the trailing edge, staying equidistant from the top and bottom surfaces of the airfoil at each point. The camber at each point is thus the distance from the camber line to either the top or bottom surface of the airfoil.

==Additional Parts==
===Endplates===
In a standard wing with no endplates, the wing experiences induced drag due to the high pressure region above the wing coming around the edge to the low pressure region below the wing. This creates vortices and adds extra drag to the vehicle. In a plane, the aspect ratio of the wing can be increased to limit this effect (think about a glider, they frequently have really long wings with a short chord, increasing wing span while limiting wing area).

For our vehicles, we cannot extend our wings outside of our wheels, and thus need to find a different solution to limit our induced drag.

Adding endplates physically prevents the high pressure and low pressure region from interacting, thereby reducing the drag generated from this effect. Sadly, endplates can generate their own drag through similar effects. The high pressure ambient air can "spill over" into the low pressure region captured inside the endplates, creating vortices and drag.

There are a few different methods to reducing this drag:
=====Louvers=====
Louvers are small cuts in the endplate, generally found above the mainplane and in front of the flaps. These cuts allow some of the high pressure air in this region to escape, which lowers the overall pressure in this area. Lowering the pressure can reduce the downforce generated, but can also reduce drag by limiting the strength of the created vortices.
=====Slats=====
Slats are generally found below the flaps and behind the mainplane, toward the rear bottom corner of the endplates. These slats allow some of the low pressure air to escape, thereby reducing the downforce and drag generated, similar to the louvers.

===Supports===
When designing supports, it is important to take into account deflection and adjustablity

[[Category:Body and Aero]]

Airfoils

2020-05-18T21:53:54Z

Crsntrpk: /* Parts of an Airfoil */