Effect of Flow Attack Angle of V-Ribs Vortex Generators in a Square Duct on Flow Structure, Heat Transfer, and Performance Improvement

<table>Contour plot of temperature in transverse plane for <svg height="7.9499998" id="M78" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 9.7749996 7.9499998" width="9.7749996" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> = 45° of V-Downstream rib at <svg height="11.375" id="M79" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 64.637497 11.375" width="64.637497" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>, <svg height="11.375" id="M80" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 68.387497 11.375" width="68.387497" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>, and <svg height="11.3125" id="M81" style="vertical-align:-0.10919pt" version="1.1" viewbox="0 0 47.75 11.3125" width="47.75" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>.</table>

Modelling and Simulation in Engineering

fig9

Figure 9

Figure 9: Effect of Flow Attack Angle of V-Ribs Vortex Generators in a Square Duct on Flow Structure, Heat Transfer, and Performance Improvement 