My first intercooler endtank
i would have tappered the edges down completly to the oulets or closer than you have them now to minimize turblent losses...id also tapper the sides in more...it will help keep the intercooler efficent....just think sharp edges hurt flow
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I don't think tapering in the sides any more would help reduce turbulence at all. Having a smooth transition to the tube on the outlet side would probably help a small amount, but unless you can get a very smooth and shallow angle on the inlet side, you are still going to develop a turbulent boundary layer and will have roughly the same exit loss coefficient. Having the sharp edges I believe actually helps develop the turbulence quicker, which means the air is probably more likely to break apart and spread across the core more evenly.
I've been messing with some 2D CFD on end tanks lately. Granted, I could potentially be misinterpreting the results as I'm just learning this stuff, but it seems like when you make an end tank that can smoothly transition to the core and minimize turbulent areas, it actually forces the air flow to be heavily biased towards one portion of the core then the rest of the core. In my mind, this will effectively cause more pressure drop across the core as the air basically slams into the face of the core and then has to move across the core face to reach a core tube that isn't at the choke flow limit. This means you have several core tube that are at their choke velocity and then some of the core relatively unused.
This seems like it would cause a heavy amount of turbulence at the entrance of the core tubes as well, further increasing the losses at the core inlet. If you tripped the flow early on and got the turbulence away from the core a bit, it might actually reduce total pressure loss across the core as fewer tubes would be near the choke flow limit and the turbulence would be away from the core inlets.
I could be wrong on all this though, this is just what I've been observing with the CFD models.
I've been messing with some 2D CFD on end tanks lately. Granted, I could potentially be misinterpreting the results as I'm just learning this stuff, but it seems like when you make an end tank that can smoothly transition to the core and minimize turbulent areas, it actually forces the air flow to be heavily biased towards one portion of the core then the rest of the core. In my mind, this will effectively cause more pressure drop across the core as the air basically slams into the face of the core and then has to move across the core face to reach a core tube that isn't at the choke flow limit. This means you have several core tube that are at their choke velocity and then some of the core relatively unused.
This seems like it would cause a heavy amount of turbulence at the entrance of the core tubes as well, further increasing the losses at the core inlet. If you tripped the flow early on and got the turbulence away from the core a bit, it might actually reduce total pressure loss across the core as fewer tubes would be near the choke flow limit and the turbulence would be away from the core inlets.
I could be wrong on all this though, this is just what I've been observing with the CFD models.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by deryck324 »</TD></TR><TR><TD CLASS="quote">design isnt that bad but the welds look very good . what kind of tig do you have</TD></TR></TABLE>
not trying to be a dick, but how is that a good design? airflow doesnt like sharp turns and right angles.
i dont know much about welding but i know that looks good. but the endtanks are going to be inefficient. i dont have the experience to qauntify the negative effects but they will be there.
again, not trying to be a dick, just callin it like i see it.
not trying to be a dick, but how is that a good design? airflow doesnt like sharp turns and right angles.
i dont know much about welding but i know that looks good. but the endtanks are going to be inefficient. i dont have the experience to qauntify the negative effects but they will be there.
again, not trying to be a dick, just callin it like i see it.
Ive tested square endtank intercoolers on a flow bench, and the results are less than desireable...
Smoothing out the exit side is where you will find the most gains...
All in all, Good work for your first end tank!!!!
Smoothing out the exit side is where you will find the most gains...
All in all, Good work for your first end tank!!!!
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Apr 5, 2004 06:24 PM






