TY - GEN
T1 - High-fidelity velocity measurements in a matched refractive index facility of randomly packed spheres
AU - Kappes, E.
AU - Marciniak, M.
AU - King, S.
AU - Nguyen, D. T.
AU - Hassan, Y. A.
AU - Ugaz, V.
N1 - Publisher Copyright:
© 2018 Begell House Inc.. All rights reserved.
PY - 2018
Y1 - 2018
N2 - Flows in packed beds are encountered in many engineering applications, such as solar thermal energy storages, chemical catalytic reactors, petroleum and civil engineering (oil and water filtering systems), magnetic refrigerators, biological tissues, and nuclear reactors. Unfortunately, complex geometries and randomly connected void spaces within packed beds have hindered efforts to characterize the underlying transport phenomena. Fully leveraging the advantages of this type of packed beds requires a fundamental understanding of flow topology within the randomly packed sphere beds. In this paper, high-fidelity velocity measurements using Time-resolved Particle Image Velocimetry (TR-PIV) at the pore scales and near the wall boundary are performed in the matching-refractive-index (MRI) facility. Effects of the wall boundary, a low bed-to-bead diameter ratio and Reynolds numbers to the flow patterns will be investigated. From the obtained velocity vector fields, the first- and second-order flow statistics will be computed.
AB - Flows in packed beds are encountered in many engineering applications, such as solar thermal energy storages, chemical catalytic reactors, petroleum and civil engineering (oil and water filtering systems), magnetic refrigerators, biological tissues, and nuclear reactors. Unfortunately, complex geometries and randomly connected void spaces within packed beds have hindered efforts to characterize the underlying transport phenomena. Fully leveraging the advantages of this type of packed beds requires a fundamental understanding of flow topology within the randomly packed sphere beds. In this paper, high-fidelity velocity measurements using Time-resolved Particle Image Velocimetry (TR-PIV) at the pore scales and near the wall boundary are performed in the matching-refractive-index (MRI) facility. Effects of the wall boundary, a low bed-to-bead diameter ratio and Reynolds numbers to the flow patterns will be investigated. From the obtained velocity vector fields, the first- and second-order flow statistics will be computed.
KW - Matched Refractive Index
KW - Randomly Packed Spheres
KW - Time-resolved Particle Image Velocimetry
UR - http://www.scopus.com/inward/record.url?scp=85090759282&partnerID=8YFLogxK
U2 - 10.1615/TFEC2018.prm.021668
DO - 10.1615/TFEC2018.prm.021668
M3 - Conference contribution
AN - SCOPUS:85090759282
T3 - Proceedings of the Thermal and Fluids Engineering Summer Conference
SP - 1563
EP - 1566
BT - Proceedings of the 3rd Thermal and Fluid Engineering Summer Conference, TFESC 2018
PB - Begell House Inc.
T2 - 3rd Thermal and Fluid Engineering Summer Conference, TFESC 2018
Y2 - 4 March 2018 through 7 March 2018
ER -