Scalable3D‐printed lattices for pressure control in fluid applications

Abstract

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.

Localization of multiple hydrogels with MultiCUBE platform spatially guides 3D tissue morphogenesis in vitro

“…The platform should completely localize ECM-protein hydrogels in their liquid phase prior incubation to allow subsequent embedding and seamless connections among hydrogel compartments. This requirement parallels concurrent developments of lattice/mesh structures to stabilize liquid thin-films by their surface tension and guide a solution flow through the capillary action [19][20][21][22] . In 3D tissue modeling, ECM-protein solutions are either placed on a solid substrate to form a hydrogel dome (Fig.…”

Automated Knowledge‐Based Design for Additive Manufacturing: A Case Study with Flow Manifolds

“…Additive manufacturing (AM) is more and more used as a manufacturing technology to fabricate process equipment devices [1][2][3][4][5][6][7]. Applications are flow manifolds [8,9], nozzles [10][11][12][13], heat exchangers [14][15][16], reactors [17][18][19][20], and lattice structures [21][22][23]. For example, Fig.…”

Numerical and Experimental Investigation of Pressure Drop in Periodic Open Cellular Structures for Intensification of Catalytic Processes

“…The pressure drop in POCS is primarily a function of the unit cell shape − and consequently of their morphological features. The virtually infinite number of designs possible for lattice materials offer the possibility to carry out numerous investigations of their pressure drop, and a few have been already performed on different geometries of interest − based on either experimental or numerical methods. Among them, in the context of chemical reaction engineering, the cubic, diamond, and tetrakaidekahedral (TKKD) unit cells and closely related designs have been mainly considered. − ,, …”

“…The virtually infinite number of designs possible for lattice materials offer the possibility to carry out numerous investigations of their pressure drop, and a few have been already performed on different geometries of interest − based on either experimental or numerical methods. Among them, in the context of chemical reaction engineering, the cubic, diamond, and tetrakaidekahedral (TKKD) unit cells and closely related designs have been mainly considered. − ,, …”