Non User
Index: > A B C D E F G H I J K L M N O P Q R S T U V W X Y Z	Business Non User Industries Finance Tax

Home > Pressure coefficient

where

• is the free stream pressure
• is the fluid density (sea level air is 1.225kg/m^3)
• Cp of zero corresponds to a the same as the free stream pressure

1 Pressure Distribution

An airfoil at a given angle of attack will have what is called a pressure distribution. This is simply the pressure at all points around an airfoil. Typically graphs of these distributions are drawn so that negative numbers are higher on the graph, as the upper surface of the airfoil will usually have a more negative Cp and will hence be the top line on the graph.

2 Cl and Cp Relationship

The coefficient of lift can be calculated from the coefficient of pressure distribution by integration, or calculating the area between the lines on the distribution.

When the lower surface Cp is higher(more negative) on the distribution it counts as a negative area as this will be producing down force rather than lift

Politics	Business	Finance

Topics: Pressure Coefficient Distribution Airfoil Negative Free Number...

---

PressurePressure (symbol: p is a measure of force per unit area. where p is the pressure F is the force A is the area Often F is taken to be the of the magnitude of the mean vector force normal to the surface of area A upon which it exerts; the "surface" not nece Pressure cookingPressure cooking is a method of cooking food in a sealed vessel that does not permit air or liquids to escape below a preset pressure. Because water's boiling point increases as the pressure increases, the pressure built up inside the cooker allows the li Pressure fryingIn a pressure frying meat is heated to cooking temperatures but pressure is held high enough that the water within is prevented from boiling off. This leaves the meat very hot and juicy. It is a variation on pressure cooking and is mostly done in industri Pressure altitudePressure altitude an aviation term, is the indicated altitude when an altimeter is set to 1013 hPa (29. 92 inHg US and Canada). It is primarily used in aircraft performance calculations, and in high-altitude flight (Class A airspace in the United States). Pressure groups in the United KingdomPressure groups in the United Kingdom can be divided into two categories. Cause groups, which promote a cause like electoral reform or animal rights or sectional groups which represent a section of society, like teachers or farmers. Most sectional groups Pressure gaugeBourdon Tube Type A pressure or vacuum gauge usually consists of a closed coiled tube (called a Bourdon tube) connected to the chamber or pipe in which pressure is to be sensed. As the pressure increases the tube will tend to uncoil, while a reduced press Pressure wave Pressure Cooker Pressure flaking Pressure vessel Pressure relief valve Pressure point Pressure coefficient Pressure Chief Pressure gradient force