Recent content by curiously new

  1. curiously new

    A Calculating noise of a transducer from molecular vibration

    That is interesting, and I will look into that experiment. I'm working in the ultrasonic range around 40 kHz with a a bandwidth of about 2 kHz. At these frequencies, I have just assumed that 1/f noise was negligible. However, I hadn't given much thought to the shot noise. Thank you for your...
  2. curiously new

    A Calculating noise of a transducer from molecular vibration

    I'd like approximate the noise floor of an ultrasonic air transducer starting from molecular vibrations. Simply put, if I treat atmospheric air as an ideal gas and I confine each air molecule to exist in a volumetric cube with a square face ##A_\mathrm{face}##, then I approximate the number of...
  3. curiously new

    I Laminar-turbulent transition and Reynolds number

    Thank you for your kind replies! I'm understanding that my initial constraint of the air so that it can be treated as an incompressible fluid is a large misstep. After reading boneh3ad's reply (apologies, I can't seem to work out how to link your profile yet), I've also investigated the boundary...
  4. curiously new

    I Laminar-turbulent transition and Reynolds number

    Hi all! This is my first post here, so hopefully I am not in violation of any rules or etiquette. I'm looking to derive an equation for Reynolds number as function of pressure for a pinhole leak in a pressurized gas line. The line is regular air and is pressurized to 1 atmosphere and is leaking...
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