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Recent content by SriMat

  1. SriMat

    Read any good books lately?

    Me started reading The Tao of Physics, by Fritjof Capra.. Giving a new perspective to the way I look at physical problems. Me being from India, makes a lot of sense of what he says :) and 'Higher Ground', an anthology of real short stories of survivors from the recent tsunami from various...
  2. SriMat

    Dynamic stability of rotating shaft with concentrated load at free end

    Dear Greg, Thanks a lot for that, Greg. As a last-ditch experimental effort, I am trying to see the effect of the long shaft by cutting down on the length of the shaft and doing similar measuremnts at room temperature - this to make sure that the length is what is causing all the trouble (as I...
  3. SriMat

    Dynamic stability of rotating shaft with concentrated load at free end

    Thanks a lot - electricpete and Greglocock. electricpete: Material type - The hollow cylinder is made of Alumina (Al2O3) which has an E of 300 GPa and the concentrated load is made of Molybdenum, which has a E of ~325 GPa. These have been considered due to the nature of the application - which...
  4. SriMat

    Dynamic stability of rotating shaft with concentrated load at free end

    Dear friends, I have this practical problem with maintaining the dynamic stability of a rotating (about vertical axis) hollow cylindrical shaft which has a concentrated load connected (rigid) to its 'free end'. The shaft is screwed on to a motor capable of rotating at various speeds...
  5. SriMat

    Spiral spring design

    Thanks a lot israelkk. Unfortunately, I have not been able to get any of the drawings or specifications about the spring from the company (its their proprietery info, I guess.) But, last Friday, the manufacturer finally got back to me saying that the maximum weight of spindle we could use on...
  6. SriMat

    Spiral spring design

    Hi all, I am using this equipment which has a flat horizontal spiral spring, with 0.0673 mN.m torque capacity. This is used to measure resistance offered by a fluid when a spindle connected to one end of this spring rotates in the fluid at a particular speed (you might know this application -...
  7. SriMat

    Scope of PIV and BOS in future aerodynamic and fluid dynamics research

    Hi all, I am curious to know what the future scenario would be like for research in Particle Image Velocimetry(PIV), Backgroound-Oriented Schlieren(BOS) in the aerodynamics and fluid dynamics sectors.I am currently doing a vacation project on the imaging and analysis of high speed flows in...
  8. SriMat

    weighted averages of temperature and velocities in a cell of molecules

    Hi All, I am currently doing a simulation of Couette flow(coding using Matlab) and require to find the weighted averages of temperatures and velocities of the molecules in the flow,that has been divided into cells of equal sizes. i am not really sure how to go about this problem.Could please...
  9. SriMat

    Help to program a collision simulation in a rarefied gas environment

    I am writing a program using MATLAB,to simulate collisions among a few thousand molecules contained in a vessel,containg a mixture of 2 gases,which constitute a rarefied gas environment. i am supposed to determine the approach to equilibrium of these molecules,by finding their thermal...

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