September 25, 2025Thermal ScienceOpen Access

Mixing enhancement in laminar flow using inclined inverted L-shaped vortex generators

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Higher inclination angles of vortex generators significantly enhance mixing efficiency in laminar flow conditions.
At Reynolds number of 600, the 30° inclination achieves a mixing index of 0.9468 with lower pressure drop than at 60°.
Mixing is initiated by two inlet streams with a step-change in concentration of a Newtonian fluid.
The optimal configuration found is a 30° inclination at Reynolds number 600, balancing mixing performance and energy consumption.

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Numerical investigation shows that vortex generator inclination affects mixing efficiency and pressure drop.

Ikumapayi et al. (2025) studied this question.

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