What Is the Drag Coefficient of a Missile Compared to a Torpedo?

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SUMMARY

The drag coefficient of a missile is generally lower than that of a torpedo due to the difference in the density of the media in which they operate. A missile, which travels through air, typically has a drag coefficient ranging from 0.01 to 0.03, while a torpedo, operating in water, experiences higher drag due to the denser medium. The drag coefficient (Cd) is defined by the equation Cd = D / (0.5 * ρ * V² * A), where D is drag, ρ is the density of the medium, V is velocity, and A is the reference area. The geometry of the object significantly influences the drag coefficient, with streamlined shapes like teardrops being optimal for minimizing drag.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with drag coefficient calculations
  • Knowledge of computational fluid dynamics (CFD) applications
  • Basic algebra and physics related to motion and forces
NEXT STEPS
  • Research the drag coefficients of various missile and torpedo designs
  • Learn about Computational Fluid Dynamics (CFD) tools for drag analysis
  • Study the impact of Reynolds number on drag in different media
  • Explore optimal shapes for minimizing drag in underwater vehicles
USEFUL FOR

Aerospace engineers, naval architects, and anyone involved in the design and optimization of underwater vehicles or missiles will benefit from this discussion.

  • #31
ok dude, you have gone far enough being stupid.
drag can be calculated experimentally.
and the drag coefficient can be obtained from von karmen integral if you have the velocity profile, which can be accurately assumed from the flow conditions.
and the drag coefficient can also be calculated using the drag formula, provided you have the value of drag.

and phusllllesssssee, DO NOT say that drag coefficient changes with velocity, infact no coefficient does so, drag coeff entirely depends on geometry relative to flow.
think yourself dude, if the drag coefficient changes, what's its use??

next time you comment anything, make sure you are fully prepared

and sorry for last time, i didnt mean that stupid thing in any offensive manner and neither now
 
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  • #32
Dear i<3math :

In fluid dynamics drag is the resistance offered by the fluid to the motion of a body. Drag is a force that depends on velocity, coefficient of drag(which is different for different geometries), density of the medium(fluid) in which the body is moving and the maximum cross-sectional area of the body exposed to the fluid. Drag can be calculated using standard formula

compare the formula given to you -->R = (1/2)DA(rho)v**2

with the standard formula -->drag = [Cd*density*(velocity^2)*plan area]/2

you can find that the resistance force R = Drag(D) [in Newton],

Cd = Coefficient of drag = D

rho = density (for air it is 1.225 Kg/m**3) & V = velocity (m/s)

velocity here is the relative velocity between the body and the fluid

I think now you can calculate the drag force on the given body
 
  • #33
howw to caliculate drag on a javelin missile..?
 
  • #34
how to caliculate drag on a javelin missile.?
 

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