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  • Users: SilverRule
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  1. SilverRule

    Fanno Flow: I just don't get it

    Hi guys, I just don't seem to get this topic fundamentally and also how to actually apply it. Just focusing on compressible flow by the way. Wikipedia starts by saying "Fanno flow is the adiabatic flow through a constant area duct where the effect of friction is considered." Basically, I...
  2. SilverRule

    Why does the location of valve in a gas flow system affect its DP and the flow rate?

    Hey guys, So in order to understand some things better, I'm playing around with different scenarios in a fluid flow simulation program. I noticed that for a gas flow system (with constant inlet and outlet pressures, fixed pipe length, fixed diameter and fixed valve opening say @ 50%), the more...
  3. SilverRule

    Extremely basic question about compressible flow

    Hi Guys, I've searched the forum and haven't found this exact question asked which is very basic and fundamental. In incompressible flow, I know that static pressure energy is converted to heat (or vibration/noise) exclusively because kinetic energy (velocity) must be constant in this type of...
  4. SilverRule

    Basic question: Full pipe vs Partially filled pipe flow

    Hi Guys, I've been studying regular fluid flow in pipes (full pipe) fundamentals i.e., pressure drop, flow calcs etc. I stumbled upon the concept of fluid flow when the pipe is only partially full like perhaps when the pipe is oversized for example. I'm trying to grasp the fundamentals of...
  5. SilverRule

    Why/How is there a shift in a Control Valve Characteristic Curve between Inherent and Installed?

    Can anyone explain how fundamentally the inherent characteristic curve of a control valve shift UP and LEFT when it's installed? I understand that there's other pressure-generating and pressure-reducing components in the system that affect the curve. But what is the mechanism behind why it...

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