Definition: The "drag coefficient" is a number that helps us understand how much air resistance (or drag) an object experiences when it moves through the air. It is calculated by comparing the drag force to the product of the object's speed and its surface area. A lower drag coefficient means less air resistance, which is usually better for moving quickly or efficiently.
In advanced discussions, the drag coefficient is often related to fluid dynamics and aerodynamics. Engineers and scientists might analyze it to improve designs for better performance, like in racing cars or airplanes.
The term "coefficient" can also refer to a numerical value in mathematics that multiplies a variable, not just in the context of drag.
There are no specific idioms or phrasal verbs that directly relate to "drag coefficient," but here are a couple of related phrases: - "Cut through the air": This phrase means to move smoothly and efficiently through the air, which relates to having a low drag coefficient. - "Wind resistance": This phrase describes the force of the wind against an object, which is what the drag coefficient measures.
The "drag coefficient" is an important concept in understanding how objects move through the air and how design can influence speed and efficiency.