Drag Force from Cable: Calculate & Understand

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SUMMARY

The discussion focuses on calculating the drag force exerted by a neutrally buoyant cable with a diameter of 14mm and a maximum length of 5km, attached to a raft moving with water flow. The user is directed to utilize the resource available at Wolfram ScienceWorld for understanding cylinder drag calculations. The drag force can be determined using fluid dynamics principles, specifically applying the drag coefficient for cylindrical objects in motion through a fluid.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with drag coefficients and their application
  • Basic knowledge of neutrally buoyant objects
  • Ability to interpret scientific resources and calculations
NEXT STEPS
  • Research the drag coefficient for cylindrical objects in fluid flow
  • Learn how to apply the drag force formula: F_d = 0.5 * C_d * ρ * A * v^2
  • Explore the effects of cable length and diameter on drag force
  • Investigate neutrally buoyant systems and their applications in underwater technology
USEFUL FOR

Engineers, physicists, and anyone involved in underwater vehicle design or fluid dynamics research will benefit from this discussion.

Chee Lin
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Hi,

I have a raft that move along in a tunnel with the water flow (no propelling engine). A neutrally buoyant cable is attached to the device at the back to supply power for the apparatus on the raft. The cable is about 14mm in diameter and the max length of cable can be 5km. May I ask how can I calculate the drag force caused by the cable?
 
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