Numerical Simulation of Heat Transfer Enhancement of a Heat Exchanger Tube Fitted with Single and Double-Cut Twisted Tapes

In this current work, heat transfer and pressure loss are predicted using a fluid simulation with incompressible flow inside a tube that has been equipped with twisted tape for several tested cases. 2 -types of twisted tape cutting tests are included in the set: single - cut and double - cut, with different cut ratios (a/b)=0.3, 0.5, 0.7, and 0.9. Supplied the (k-epsilon model) in the Ansys Fluent, the simulation was run analytically. The tests were conducted to test the influence of cutting the twisted -tape on the behaivior of flow and the performance enhancing by employing water flows in turbulent by applying Reynold number to measure the fluid's velocity, which ranges from 5000 to 25000. According to the results of the testing, the double -cut case expresses a pressure drop and transfers heat more effectively than the single -cut case; the double -cut case also has higher friction factor values. Regarding the testing of the cutting ratio's effect, the findings indicate that the thermalperformance is rising in relation to the cutting ratio's rise. There were good agreements found in the study's comparison analysis with earlier studies in the same field.