I want to insert helical screw twist tape in some part of pipe for making swil and enhancement in heat transfer. the flow regim in the tube is laminar and fluid is water. i want to know How long should the twist tape be ? and which position of tube is better for inserting turbolatur.
thanks
I can recommend two paper about the long of twisted tape and wire coil
First one is related with twisted tape, the paper is Thermal characteristics in a heat exchanger tube fitted with dual twisted tape elements in tandem
Second one is related with wire coil Heat Transfer Behavior in a Square Duct with Tandem Wire Coil Element Insert.
You can examine both paper, they give you an idea.
@Smith Eiamsa-Ard has lots of paper about this topic. I suggest that you read all papers of Smith Eiamsa-Ard.
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