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Biomimetics
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Drag Reduction through Bionic Approaches
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Drag Reduction through Bionic Approaches

A special issue of Biomimetics (ISSN 2313-7673). This special issue belongs to the section "Development of Biomimetic Methodology".

Deadline for manuscript submissions: closed (1 June 2025) | Viewed by 4778

Special Issue Editors

Prof. Dr. Huawei Chen

E-Mail Website
Guest Editor
School of Mechanical Engineering and Automation, Beihang University, Beijing, China
Interests: interfacial microfluid and mechanism of micro-effect; flexible electronics manufacturing; bionic multifunctional surface; multi-scale micro and nano manufacturing; 4D printing
Prof. Dr. Limei Tian

E-Mail Website
Guest Editor
College of Biological and Agricultural Engineering, Jilin University, Changchun, China
Interests: drag reduction; antifouling; resist wear; anti-corrosion; energy conservation; biomimetic micro-nano manufacturing
Prof. Dr. Yang He

E-Mail Website
Guest Editor
School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, China
Interests: drag reduction; anti-icing technology; aviation and fluid mechanics; biomimetic micro-nano manufacturing
Dr. Dengke Chen

E-Mail Website
Guest Editor
College of Transportation, Ludong University, Yantai, China
Interests: drag reduction; antifouling; anti-icing technology; smart skin; micro and nano fabrication

Special Issue Information

Dear Colleagues,

Energy-saving technology plays a vital role in improving the natural environment, building a green, low-carbon and sustainable economic system, and realizing the goal of “Peak Carbon Dioxide Emission and Carbon Neutrality”. As one of the practicable methods to pursue this goal, drag reduction has attracted significant attention, and nature-inspired drag reduction surfaces have achieved great progress. Innovation inspiration can be continuously provided via mimicking the special structure and material of creatures found in nature.

This Special Issue aims to exhibit new research achievements, findings and ideas in drag reduction via bio-inspired approaches and technologies. These include bionic approaches and technologies, such as the bionic design of micro-nano structures, the fabrication of bionic surfaces, the numerical analysis of drag reduction characteristics, and other new advances in theoretical, experimental, and bionic design focusing on drag reduction.

This Special Issue will focus on recent progress in multi-disciplinary biomimetic technologies that have practical potential, such as bio-inspired drag reduction films, turbulators, large-area preparation and flow field analysis based on machine learning.  Practical application methods and cases of bionic drag reduction may also be submitted.

Topics of interest include but are not limited to:

  • Advances in bionic drag reduction;
  • Design and fabrication of bionic surfaces;
  • Bio-inspired micro- and nano-structures;
  • Bio-inspired learning and control of fluid fields;
  • Analysis of micro-nano flow fields;
  • Applications of bio-inspired drag reduction

Prof. Dr. Huawei Chen
Prof. Dr. Limei Tian
Prof. Dr. Yang He
Dr. Dengke Chen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Biomimetics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • bio-inspired surfaces
  • bio-inspired fabrication
  • drag reduction
  • numerical simulation
  • applications

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

23 pages, 6740 KiB  
Article
Numerical Investigations of Flow over Cambered Deflectors at Re = 1 × 105: A Parametric Study
by Gang Wang, Zhi Wang, Zhaoqi Jiao, Pihai Gong and Changtao Guan
Biomimetics 2025, 10(6), 385; https://doi.org/10.3390/biomimetics10060385 - 10 Jun 2025
Viewed by 282
Abstract
The cambered deflectors in aquacultural facilities are applied to enhance hydrodynamic efficiencies or enable flow fields to be fully developed. Given the anticipated improvements with the bio-inspired profiles or tandem configurations, the hydrodynamics of cambered deflectors with the above features are investigated at [...] Read more.
The cambered deflectors in aquacultural facilities are applied to enhance hydrodynamic efficiencies or enable flow fields to be fully developed. Given the anticipated improvements with the bio-inspired profiles or tandem configurations, the hydrodynamics of cambered deflectors with the above features are investigated at Re=1×105. The relationship between force coefficients and local flow behaviors for both bionic and non-bionic isolated deflectors, as well as tandem deflectors, is revealed using k−ω SST simulation. The dependencies of force coefficients on gap (G), stagger (S), and inclination angles (θ) in tandem deflectors are illustrated using an updated metamodeling workflow with simulated data. It is demonstrated that the variations of force coefficients over angles of attack are related to flow physics in boundary-layer regions. The non-bionic isolated deflector with the θ=10∘ prevails as the decent performances of CL and γ globally, which is chosen in the following studies. Regarding tandem deflectors, θ plays a more vital role in drag coefficients (CD) and lift coefficients (CL), while the influence of S is not quite considerable compared to G. Aiming for cost minimizations and lift improvements, an optimized tandem case is obtained and justified with the superiorities in flow fields. This study has provided novel insights into the designs and optimizations of cambered deflectors in aquacultural engineering. Full article
(This article belongs to the Special Issue Drag Reduction through Bionic Approaches)
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16 pages, 12995 KiB  
Article
DEM Study and Field Experiments on Coupling Bionic Subsoilers
by Zihe Xu, Hongyan Qi, Lidong Wang, Shuo Wang, Xuanting Liu and Yunhai Ma
Biomimetics 2025, 10(5), 306; https://doi.org/10.3390/biomimetics10050306 - 11 May 2025
Viewed by 354
Abstract
Subsoiling is an effective tillage method for breaking up the plough pan and reducing soil bulk density. However, subsoilers often encounter challenges such as high draft resistance and excessive energy consumption during operation. In this study, the claw toes of the badger and [...] Read more.
Subsoiling is an effective tillage method for breaking up the plough pan and reducing soil bulk density. However, subsoilers often encounter challenges such as high draft resistance and excessive energy consumption during operation. In this study, the claw toes of the badger and the scales of the pangolin were selected as bionic prototypes, based on which coupling bionic subsoilers were designed. The discrete element method (DEM) was used to simulate and analyze the interactions between soil and both the standard subsoiler and coupling bionic subsoilers. Field experiments were conducted to validate the simulation results. The simulation results showed that the coupling bionic subsoilers reduced the draft force by 7.70–16.02% compared to the standard subsoiler at different working speeds. Additionally, the soil disturbance coefficient of the coupling bionic subsoilers decreased by 5.91–13.57%, and the soil bulkiness was reduced by 2.84–18.41%. The field experiment results showed that coupling bionic subsoilers reduced the average draft force by 11.06% and decreased the soil disturbance area. The field experiments validated the accuracy of DEM simulation results. This study provides valuable insights for designing more efficient subsoilers. Full article
(This article belongs to the Special Issue Drag Reduction through Bionic Approaches)
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16 pages, 8584 KiB  
Article
Efficient Mako Shark-Inspired Aerodynamic Design for Concept Car Bodies in Underground Road Tunnel Conditions
by Ignacio Venegas, Angelo Oñate, Fabián G. Pierart, Marian Valenzuela, Sunny Narayan and Víctor Tuninetti
Biomimetics 2024, 9(8), 448; https://doi.org/10.3390/biomimetics9080448 - 24 Jul 2024
Cited by 1 | Viewed by 2912
Abstract
The automotive industry continuously enhances vehicle design to meet the growing demand for more efficient vehicles. Computational design and numerical simulation are essential tools for developing concept cars with lower carbon emissions and reduced costs. Underground roads are proposed as an attractive alternative [...] Read more.
The automotive industry continuously enhances vehicle design to meet the growing demand for more efficient vehicles. Computational design and numerical simulation are essential tools for developing concept cars with lower carbon emissions and reduced costs. Underground roads are proposed as an attractive alternative for reducing surface congestion, improving traffic flow, reducing travel times and minimizing noise pollution in urban areas, creating a quieter and more livable environment for residents. In this context, a concept car body design for underground tunnels was proposed, inspired by the mako shark shape due to its exceptional operational kinetic qualities. The proposed biomimetic-based method using computational fluid dynamics for engineering design includes an iterative process and car body optimization in terms of lift and drag performance. A mesh sensitivity and convergence analysis was performed in order to ensure the reliability of numerical results. The unique surface shape of the shark enabled remarkable aerodynamic performance for the concept car, achieving a drag coefficient value of 0.28. The addition of an aerodynamic diffuser improved downforce by reducing 58% of the lift coefficient to a final value of 0.02. Benchmark validation was carried out using reported results from sources available in the literature. The proposed biomimetic design process based on computational fluid modeling reduces the time and resources required to create new concept car models. This approach helps to achieve efficient automotive solutions with low aerodynamic drag for a low-carbon future. Full article
(This article belongs to the Special Issue Drag Reduction through Bionic Approaches)
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