Fluid Manipulation Techniques: Advances, Challenges and Perspectives

A special issue of Fluids (ISSN 2311-5521).

Deadline for manuscript submissions: 31 December 2024 | Viewed by 1340

Special Issue Editors

College of Medicine and Biological Information Engineering, Northeastern University, Shenyang 110169, China
Interests: microfluidics; soft materials; flexible electronics; sensors and probes
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Guest Editor
School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China
Interests: bioinspired interface; fluid manipulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Fluid manipulation has emerged as a versatile and powerful platform for fostering multidisciplinary applications in physics, chemistry, biology, engineering, the environment, biomedical engineering, and medicine. Having been burgeoning for decades, fluid manipulation is undergoing a “golden” development age, with novel concepts and technologies continuing to emerge. This Special Issue aims to showcase research papers, communications, and review articles that focus on recent advancements in the fundamentals of fluid manipulation, including, but not limited to, (1) the fundamental understanding of fluid manipulation, (2) the fluid mechanics of innovative fluid manipulation systems, and (3) diverse applications related to fluid manipulation.

Dr. Ye Tian
Prof. Dr. Moyuan Cao
Guest Editors

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Keywords

  • fluid manipulation
  • droplet
  • wettability
  • microfluidics
  • bubbles
  • fluid mechanics

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Published Papers (1 paper)

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Research

19 pages, 8513 KiB  
Article
Laminar Boundary Layer over a Serrated Backward-Facing Step
by Real J. KC, Trevor C. Wilson, Nicholas A. Lucido, Aaron S. Alexander, Jamey D. Jacob and Brian R. Elbing
Fluids 2024, 9(6), 135; https://doi.org/10.3390/fluids9060135 - 2 Jun 2024
Viewed by 889
Abstract
Laminar flow over a modified backward-facing step (BFS) was studied experimentally and computationally, with the results compared to a flight test on a Piper Cherokee wing. The BFS was modified with a serrated spanwise variation while maintaining a constant step height, and this [...] Read more.
Laminar flow over a modified backward-facing step (BFS) was studied experimentally and computationally, with the results compared to a flight test on a Piper Cherokee wing. The BFS was modified with a serrated spanwise variation while maintaining a constant step height, and this modification is termed a serrated BFS (sBFS). A scaling law was proposed and then used to develop the experimental operation conditions. The experiments showed evidence that the transition to turbulence was delayed over the forward part of the serration (termed the valley). The boundary layer growth and characterization were used to validate the computational model, which was then used to examine details not available from the experiment, including the wall shear stress distribution and streamlines as they go over the sBFS. The wall shear stress showed the formation of low-shear diamonds downstream of the sBFS valley that were associated with laminar flow, which confirmed previous assumptions about the low-shear diamonds observed in the flight tests. The length of the low-shear diamonds was scaled with the sBFS geometry. Finally, the streamlines showed that the near-wall flow forward of the sBFS is pumped towards the sBFS peak, where it rapidly transitions to turbulence at that location. Full article
(This article belongs to the Special Issue Fluid Manipulation Techniques: Advances, Challenges and Perspectives)
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