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  • Users: aali94
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  1. aali94

    Simultaneous Cathodic Protection and 4 Wire Resistance Measurement

    I am making an electrical resistance sensor for erosion rate measurement using the Arduino. Since my sensing element is a thin strip of carbon steel, I have to ensure that it is protected from corroding, so I can measure pure erosion. I am measuring the resistance using the 4 wire method, and...
  2. aali94

    Interfacial tension between crude oil and paraffin wax deposit

    Hi, I am trying to model the sloughing of paraffin wax deposits from the walls of oil pipelines due to the flow of crude oil. One of the parameters I require is the interfacial tension between crude oil and the wax deposit. I have varied the interfacial tension in my CFD simulations from 10 to...
  3. aali94

    Shear Stress in Pipe Flow

    I was reading a paper on the strength of paraffin gels formed in pipelines, and I came across a part that said, "In a pipeline, a shear stress of 5 Pa would be exerted on the incipient gel deposit by an oil flow rate of approximately 16,000 barrels oil per day in a 10-in pipeline with an oil...
  4. aali94

    Flow in Pipes

    U ̅U ̅ I'm trying to understand how fluid friction factor varies with Reynolds number. I do not understand why there is a sudden increase in friction factor at transition and why it then decreases gradually as the flow becomes turbulent? I have read that random fluctuations in velocity in...

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