Viscous damping acting on rotating disk

Click For Summary

Discussion Overview

The discussion revolves around calculating the torque and viscous damping coefficient acting on a rotating metal disk submerged in an oil sump. The scope includes fluid mechanics and the challenges of finding relevant literature or methods for solving the problem.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • One participant seeks a method to calculate the torque and viscous damping coefficient for a rotating disk in a viscous fluid.
  • Another participant suggests looking into fluid mechanics literature regarding the torque on a finite disk in a viscous fluid, noting it may not be commonly found in standard textbooks.
  • A later reply expresses interest in solving the problem but indicates a lack of necessary skills and seeks guidance on keywords for literature search.
  • One participant recommends using the term "viscous drag on rotating disc" as a potential search keyword.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on a specific method or solution, and multiple views on how to approach the problem remain present.

Contextual Notes

There are limitations regarding the participant's skills in fluid mechanics and the potential difficulty in finding relevant literature on the topic.

Who May Find This Useful

Individuals interested in fluid mechanics, particularly those dealing with viscous damping in rotating systems or seeking literature on related calculations.

bisherbas
Messages
2
Reaction score
0
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.
 
Engineering news on Phys.org
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.
 

Similar threads

Replies
5
Views
15K
Replies
5
Views
2K
Replies
8
Views
3K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
2
Views
4K
  • · Replies 12 ·
Replies
12
Views
3K
  • · Replies 5 ·
Replies
5
Views
5K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K