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Recent content by CWitkowski

  1. CWitkowski

    Extruding through a curved rib (and not beyond)

    Hi, I am trying to make a cut along a curved rib, without extruding past the rib. The ribs are not straight when viewed from the top, nor is their profile straight from the side (see attachment - pics B & C are what I'm aiming for, drawn in Catia). At the moment, as you can see in pic A, I...
  2. CWitkowski

    Estimating dPg/mass flow from compressor maps?

    Thanks for your reply, but I'm not sure I fully understand. Please see my attachment. Assume all pressure values are absolute, and that P1 and Pambient are constant for all flow rates. The only thing that varies is volumetric flow and P2 (due to varying pressure drops across the intercooler)...
  3. CWitkowski

    Plotting system resistance onto turbo compressor map

    Hello, I've cross posted this on another forum, but I suspect I may have more success here. Basically I'm wanting to plot a set of system resistance curves (for a group of CAC's [charge air coolers]) onto a turbocharger compressor map. I have a set of pressure drop curves for my CAC's...
  4. CWitkowski

    Estimating dPg/mass flow from compressor maps?

    Just to re-iterate what I'm trying to do... I have a set of pressure drop curves for my CAC's, showing pressure drop (mbar) against mass flow (kg/min). I want to plot these onto my turbocharger compressor map, to give me a set of system resistance curves. I can convert the mass flows into the...
  5. CWitkowski

    Estimating dPg/mass flow from compressor maps?

    Basically what I need to estimate is the new mass flow through the low restriction CAC instead of the original (assuming all other parameters are the same). Once I know the mass flow with the new CAC, I can calculate my new manifold temperature (as the mass flow will increase, manifold temp...
  6. CWitkowski

    Estimating dPg/mass flow from compressor maps?

    Hello, I am trying to estimate the effect of changing the CAC (charge air cooler) on a given generator set. I want to replace the current CAC with one which has different tanks and therefore a lower pressure drop across the cooler. The cores are identical. I have pressure drop curves vs...

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