Accessing multidimensional mixing via 3D printing and showerhead micromixer design

Zhang, Haomiao; Kopfmüller, Thomas; Achermann, Ramona; Zhang, Jisong; Teixeira, Andrew R.; Shen, Yulong; Jensen, Klavs F.

doi:10.1002/aic.16873

Cited by 26 publications

(17 citation statements)

References 28 publications

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“…Approaches based on competing reaction system are widely used owing to their universal applicability, such as the azo reaction system 29,30 and the acid–base neutralization and alkaline hydrolysis of ethyl monochloroacetate system 31 . In particular, the iodide‐iodate reaction system, also known as the Villermaux–Dushman protocol 32,33 is a commonly used chemical quantification method for micromixing.…”

Section: Methodsmentioning

confidence: 99%

Micromixing in a gas–liquid vortex reactor

et al. 2021

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The gas–liquid vortex reactor (GLVR) has substantial process intensification potential for multiphase processes. Essential in this respect is the micromixing efficiency, which is of great importance in fast reaction systems such as crystallization, polymerization, and synthesis of nanomaterials. By creating a vortex flow and taking advantage of the centrifugal force field, the liquid micromixing process can be intensified in the GLVR. Results show that introducing a liquid into a gas‐only vortex unit results in suppression of primary and secondary gas flow. The Villermaux–Dushman protocol is applied to study the effects of the gas flow rate, liquid flow rate, and liquid viscosity based on a segregation index. Based on the incorporation model and reaction kinetics, the micromixing time of the GLVR is determined to be in the range of 10−4 ~ 10−3 s, which is comparable to the highly efficient rotating packed bed and substantially better than a static mixer.

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Section: Methodsmentioning

confidence: 99%

Micromixing in a gas–liquid vortex reactor

et al. 2021

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“…With its nearly infinite design space, 3D printing technology is evolving alongside new software tools to design, simulate, and realize concepts that could previously be only theorized 8–10 . There is growing precedent for using additively manufactured parts for controlling fluid transport, including multioutlet and mulitinlet devices for a range of applications 11–14 . Such works demonstrate the potential for 3D printing and additive manufacturing to drive novel transport process development and new applications, enabled by the complex structures that only additive processes can produce.…”

Section: Introductionmentioning

confidence: 99%

Scalable3D‐printed lattices for pressure control in fluid applications

et al. 2021

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Additive manufacturing affords precise control over geometries with high degrees of complexity and predefined structure. Lattices are one class of additive-only structures which have great potential in directing transport phenomena because they are highly ordered, scalable, and modular. However, a comprehensive description of how these structures scale and interact in heterogeneous systems is still undetermined. To advance this aim, we designed cubic and Kelvin lattices at two sub-5-mm length scales and compared published correlations to the experimental pressure gradient in pipes ranging from 12 to 52 mm diameter.We further investigated all combinations of the four lattices to evaluate segmented combinatorial behavior. The results suggest that a single correlation can describe pressure behavior for different lattice geometries and scales. Furthermore, combining lattice systems in series has a complex effect that is sensitive to part geometry. Together, these developments support the promise for tailored, modular lattice systems at laboratory scales and beyond.

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“…Kriaa et al 24 studied the dynamic structure, heat and mass transfer of a vertical ceramic tiles dryer by using CFD. Zhang et al 25 studied the mixing performance of a 3D metal‐printing showerhead mixer by both experiments and CFD simulation. In these studies, CFD is employed to not only understand the flow structure but also optimize the mixer design.…”

Section: Introductionmentioning

confidence: 99%

Liquid mixing intensification by adding swirling flow in the transverse jet mixer

Zhang

et al. 2021

AIChE Journal

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In this study, effect of swirling addition on the liquid mixing behavior of multiorifice‐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 few milliseconds. Whereas the mixing is restrained when the swirling directions of two flows are the same.

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Accessing multidimensional mixing via 3D printing and showerhead micromixer design

Cited by 26 publications

References 28 publications

Micromixing in a gas–liquid vortex reactor

Micromixing in a gas–liquid vortex reactor

Scalable3D‐printed lattices for pressure control in fluid applications

Liquid mixing intensification by adding swirling flow in the transverse jet mixer

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