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Liquid mixing intensification by adding swirling flow in the transverse jet mixer
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  • Bin Wu,
  • Chunhui Li,
  • Mengxue Zhang,
  • Peicheng Luo
Bin Wu
Southeast University
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Chunhui Li
Southeast University
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Mengxue Zhang
Southeast University
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Peicheng Luo
Southeast University
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Abstract

In this study, effect of swirling addition on the liquid mixing behavior of multi-orifice-impinging transverse jet mixer has been investigated by planar laser induced fluorescence as well as large eddy simulation (LES). In the case of swirling addition into the jet flow, there exists an optimized swirling jet angle or optimized jet-to-cross velocity ratio for the fixed mixer configuration. A larger swirling jet angle will make the flow dominated by the swirling, resulting in a slower mixing process. Interaction of swirling crossflow with no-swirling injected streams, or with swirling injected streams in the opposite direction is beneficial for the mixing. LES predictions show that many small vortices are produced homogenously due to intensified impingement in the case of opposite swirling directions, leading to a relative fast mixing process in several milliseconds. Whereas the mixing is restrained when the swirling directions of two flows are the same.

Peer review status:Published

07 Nov 2020Submitted to AIChE Journal
09 Nov 2020Submission Checks Completed
09 Nov 2020Assigned to Editor
16 Nov 2020Reviewer(s) Assigned
06 Feb 2021Editorial Decision: Revise Major
25 Feb 20211st Revision Received
02 Mar 2021Submission Checks Completed
02 Mar 2021Assigned to Editor
03 Mar 2021Reviewer(s) Assigned
31 Mar 2021Editorial Decision: Accept
13 Apr 2021Published in AIChE Journal. 10.1002/aic.17276