Numerical Simulation of Turbulent Flow on a High-Speed Crossflow Blowing over Array Slots with Weak Injection

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Abstract

A numerical simulation is conducted to investigate the characteristics of weak flow generated by array slots jets in a high-speed crossflow. The jet to crossflow velocity ratio is 0.055 and the crossflow velocity is 100m/s. Flow field and pressure drop performances are compared between the jet with and without array slots. The results show that the counter-rotating secondary vortex from the jet with array slots is more clearly induced by the jet-to-crossflow interaction than that without array slots, and the maximum of negative pressure of jet with array slots is almost the same as that without slots for crossflow, while the skin friction coefficient is 7% higher than that without slots for jet flow.

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Lin, M., Xu, X., Wu, B., Wang, L., & Wang, Q. (2015). Numerical Simulation of Turbulent Flow on a High-Speed Crossflow Blowing over Array Slots with Weak Injection. In Energy Procedia (Vol. 75, pp. 1734–1739). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2015.07.444

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