Recent content by mrajkumar

  1. M

    Comparison of thermal shock profiles

    I am trying to compare the thermal shock profiles to understand the severity of each and ways to compare them. This is required to choose a component for my required qualification limit. I've uploaded the profile herewith. Requesting a guidance.
  2. M

    Comparison of thermal shock profiles

    Could someone help me in comparing 2 different thermal shock test profiles effect on a component. The 2 profiles are varied in deg C /min change and also the dwell time in low and high tempwratures. Any references are highly appreciated. Thank you
  3. M

    Absorptive type sound insulation

    Yes. the wave length reduces as frequency increases.
  4. M

    Absorptive type sound insulation

    Could you tell me the physical reason, why the absorptive type sound insulation (Windowpane with some thickness) is effective only at high frequencies of sound source?
  5. M

    Air flow over a circular cylinder

    Thank you sir for the response. That Bernoulli's equation is valid for steady flow, inviscid, incompressible fluid and irrotational flow. And in the above situation can the stagnation pressure increase? Or if it decreases, is it converting to heat? Kindly clarify sir. thank you.
  6. M

    Air flow over a circular cylinder

    Hi, Could you explain the reason why the velocity varies in the wake region behind the cylinder in "flow over a circular cylinder"? the velocity variation is, minimum at a point parallel to the centre point of the cylinder and increases to free stream velocity as the vertical distance increases...
  7. M

    What is the sweet spot on a cricket bat for reducing shock to the hands?

    hi, could you tell me how to calculate the axial force (along the axis of the bat) on the bat, when the ball hits with some angle with respect to the bat longitudinal axis. The normal force on the bat I've calculated based on the impulse momentum equation. I'm interested i calculating...
  8. M

    What is the physical meaning of Stoke's theorem in relation to fluid rotation?

    Hi, Could you tell me the physical meaning of the stoke's theorem which equates the area integral of vorticity and the line integral of the velocity? what is the meaning of taking a area integral of vorticity? Sorry i could not get the physical meaning of these integrations. Thank you
  9. M

    Boundary Layer Theory: Displacement & Momentum Thickness Explained

    Hi, could you tell the physical meaning of the displacement and momentum thickness of a boundary layer.And why the stream line diverges away from the body in the boundary layer to conserve mass?
  10. M

    Aircraft Fuel Booster Pump - Centrifugal & Immersed in Fuel

    What is the correct way to put limitation on different aircraft flying conditions with respect to the cavitation point of view of the Fuel booster pump in the aircraft? The pump is immersed in the fuel and the fuel tank is vented to atmosphere(in atmospheric pressure, which will change with...
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