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Everything about Drag coefficient
Dimensionless parameter to quantify fluid resistance
In fluid dynamics, the drag coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water. It is used in the drag equation in which a lower drag coefficient indicates the object will have less aerodynamic or hydrodynamic drag. The drag coefficient is always associated with a reference area. With the exception of spheres it is also associated with the orientation of the object relative to the direction of the flowing fluid. Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: Drag coefficientA 5-minute orientation
- Skim a recent paper: Vehicle Platooning Impact on Drag Coefficients and Energy/Fuel Saving ImplicationsInfluential work since 2022
- Pick up a classic book: Two-dimensional converging-diverging rippled nozzles at transonic speedsThe most-reprinted book on the subject
- Read the landmark paper: Drag coefficient and terminal velocity of spherical and nonspherical particlesCited 1,953 times
- Go sideways: Drag equationA closely related topic
- Go sideways: Added massA closely related topic
📖 Definitions
Noun A dimensionless quantity quantifying the amount of hydrodynamic drag force experienced by an object with a given area immersed in a fluid of a given density flowing at a given speed.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
Drag coefficient and terminal velocity of spherical and nonspherical particles
Drag coefficient and relative velocity in bubbly, droplet or particulate flows
Reduced drag coefficient for high wind speeds in tropical cyclones
On the drag coefficient of a sphere
Drag Coefficient and Fall Velocity of nonspherical particles
Drag coefficient of particles in a rocket nozzle.
A parameterization of the ice‐ocean drag coefficient
General Drag Coefficient for Flow over Spherical Particles
🆕 Influential since 2022
Vehicle Platooning Impact on Drag Coefficients and Energy/Fuel Saving Implications
Terminal velocity and drag coefficient for spherical particles
Satellite drag coefficient modeling for thermosphere science and mission operations
Drag coefficient and frontal area of a solitary mature tree
Bottom Drag Coefficient on a Shallow Barrier Reef
📚 Books worth reading
- 📕Two-dimensional converging-diverging rippled nozzles at transonic speedsJohn R. Carlson · 1994
- 📕IPAC--Inlet Performance Analysis CodePaul J. Barnhart · 1997
- 📕Invariance of hypersonic normal force coefficients with Reynolds number and determination of inviscid wave drag from laminar experimental resultsJim A. Penland · 1997
- 📕Development of multiobjective optimization techniques for sonic boom minimizationAditi Chattopadhyay · 1995
- 📕Rarefaction effects on Galileo probe aerodynamics · 1996
- 📕Geopotential Research Mission, science, engineering, and program summaryThomas Keating · 1986
- 📕A simple analytical aerodynamic model of Langley winged-cone aerospace plane conceptBandu N. Pamadi · 1994
- 📕An aerodynamic tradeoff study of the scissor wing configurationBruce P. Selberg · 1990
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
🔗 Related topics
- Drag equation In fluid dynamics, the drag equation is a formula used to calculate the force of drag experienced by an object due to movement through a fully enclosing…
- Added mass In fluid mechanics, added mass or virtual mass is the inertia added to a system because an accelerating or decelerating body must move (or deflect) some…
- Drag count A drag count is a dimensionless unit used by aerospace engineers. 1 drag count is equal to a C d {\displaystyle C_{d}} of 0.0001. As the drag forces present…
- Drag area In mechanics and aerodynamics, the drag area of an object represents the effective size of the object as it is "seen" by the fluid flow around it. The…
- Drag (physics) In fluid dynamics, drag, sometimes referred to as fluid resistance, and also known as viscous force, is a force acting opposite to the direction of motion…
- Bejan number There are two different Bejan numbers (Be) used in the scientific domains of thermodynamics and fluid mechanics. Bejan numbers are named after Adrian Bejan…
- Parasitic drag Parasitic drag, also known as profile drag, is a type of aerodynamic drag that acts on any object when the object is moving through a fluid. Parasitic…
- Morison equation In fluid dynamics the Morison equation is a semi-empirical equation for the inline force on a body in oscillatory flow. It is sometimes called the MOJS…