Recent content by sarahh

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    Rate of change of pressure

    Yes, the cross-sectional area of the pipe changes along the x-direction. We would like to study the relationship between the rate of change of pressure and the rate of change of pumping power. Sarah
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    The rate of change of pressure (Urgent, please help)

    Our problem is that we measured the rate of change of pressure of a liquid at different length of a pipe, for example, x=0, x=5cm, ... etc, caused by a pump at x=0-15cm=-15cm and got a result that at x=0, dP1/dt1 = -dP2/dt2, where dP1 is the pressure difference over a fixed interval, del t1, and...
  3. S

    The rate of change of pressure

    URGENTThe rate of change of pressure Our problem is that we measured the rate of change of pressure of a liquid at different length of a pipe, for example, x=0, x=5cm, ... etc, caused by a pump at x=0-15cm=-15cm and got a result that at x=0, dP1/dt1 = -dP2/dt2, where dP1 is the pressure...
  4. S

    Rate of change of pressure

    Urgent, Please Help Thank you for the reply. Our problem is that we measured the rate of change of pressure of a liquid at different length of a pipe, for example, x=0, x=5cm, ... etc, caused by a pump at x=0-15cm=-15cm and got a result that at x=0, dP1/dt1 = -dP2/dt2, where dP1 is the...
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    Rate of change of pressure

    Dear Sir/Madam, I would like to know if I can apply the conservation of momentum to the rate of change of pressure at a fixed position (for e.g. x=0) as follows: dP1/dt=-dP2/dt where dP1 is the pressure changes over a fixed interval of time (del t1) and dP2 is the pressure changes over...
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