Viscous damping acting on rotating disk

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SUMMARY

The discussion focuses on calculating the torque and viscous damping coefficient for a rotating metal disk submerged in an oil sump, expressed as T = c*w. Participants suggest exploring fluid mechanics literature, specifically regarding torque on a finite disk in a viscous fluid. The conversation highlights the challenge of finding relevant resources online, as this topic is not commonly covered in standard engineering textbooks. Keywords such as "viscous drag on rotating disc" are recommended for further research.

PREREQUISITES
  • Basic understanding of fluid mechanics principles
  • Familiarity with torque calculations
  • Knowledge of viscous drag concepts
  • Awareness of computational fluid dynamics (CFD) software
NEXT STEPS
  • Research "viscous drag on rotating disc" in fluid mechanics literature
  • Explore torque calculation methods for rotating bodies in viscous fluids
  • Learn about computational fluid dynamics (CFD) software applications
  • Investigate the effects of viscosity on rotational motion in fluids
USEFUL FOR

Mechanical engineers, fluid dynamics researchers, and students seeking to understand the effects of viscous damping on rotating systems.

bisherbas
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I am looking for a way to calculate the torque, hence the viscous damping coefficient per T = c*w, acting on a rotating metal disk in an oil sump. How can I go about it? Thanks!

PS. I am not a ME so please forgive my ignorance.
 
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You may be able to find something in the fluid mechanics literature about the torque on a finite disk rotating in an infinite ocean of viscous fluid. I don't think it is something that you are going to find in everyday textbooks, and probably not on line. I assume you are not interested in setting up the problem and solving it yourself or using CFD software.

Chet
 
Thank you for the reply. Well I would be interested in that but I don't have the necessary skills to do so. I was hoping to find an answer online because I thought it would be a common fluid dynamics problem in the ME world. I could search the literature but I would need help with choosing the right keywords.
 
Try viscous drag on rotating disc.
 

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