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why more level in initial mesh, more pressure drop happened?

Question asked by Qi Hongming on Jan 15, 2015
Latest reply on Jan 15, 2015 by Jared Conway

Please see attachment, this is one circulation electric heater, I want to calculate the pressure drop when the fluid flow through this heater, I setup 3 level and another 4 level in initial mesh, but produce difference pressure drop? More level in initial mesh, more pressure drop happened? Could you tell me the reasons?heater.JPG

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