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Inventions
Special Issues
Innovative Research and Applications in Hydrodynamics and Flow Control
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Special Issue "Innovative Research and Applications in Hydrodynamics and Flow Control"

A special issue of Inventions (ISSN 2411-5134). This special issue belongs to the section "Inventions and innovation in Energy and Thermal/Fluidic Science".

Deadline for manuscript submissions: 30 November 2023 | Viewed by 1309

Special Issue Editors

Dr. Peng Du

E-Mail Website
Guest Editor
School of Marine Science and Technology, Northwestern Polytechnical University (NPU), 127 Youyi Road, Beilin, Xi’an 710072, China
Interests: hydrodynamics; flow control; flow perception; CFD
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Haibao Hu

E-Mail Website
Guest Editor
School of Marine Science and Technology, Northwestern Polytechnical University, 127 Youyi Road, Beilin, Xi’an 710072, China
Interests: drag reduction; flow control; marine engineering
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xiaopeng Chen
E-Mail Website
Guest Editor
School of Marine Science and Technology, Northwestern Polytechnical University, 127 Youyi Road, Beilin, Xi’an 710072, China
Interests: multiphase flow; bubbles; Lattice Boltzmann method
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue aims to collect cutting-edge developments in the area of hydrodynamics and flow control, including both fundamental and engineering research. Hydrodynamics is of great importance in ships, marine engineering, energy, etc. It influences the kinetics and kinematics of ships, underwater vehicles, and marine structures. Flow control techniques can manipulate the hydrodynamics and lead to energy saving, high performance, etc. The following topics are included, and other related topics are also welcomed.

  1. Design of ships, underwater vehicles and marine structures
  2. Shape optimization of marine vehicles
  3. Experimental fluid mechanics of marine structures
  4. Computational methods for fluids
  5. Applications of CFD methods
  6. Flow control techniques
  7. Fluid mechanics
  8. Machine learning methods for fluids.

Dr. Peng Du
Prof. Dr. Haibao Hu
Prof. Dr. Xiaopeng 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. Inventions is an international peer-reviewed open access semimonthly 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 1500 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

  • hydrodynamics
  • flow control
  • fluid mechanics
  • CFD

Published Papers (2 papers)

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Article
Effect of Support Stiffness Nonlinearity on the Low-Frequency Vibro-Acoustic Characteristics for a Mechanical Equipment—Floating Raft—Underwater Cylindrical Shell Coupled System
by
Likang Wang
and
Rui Huo
Inventions 2023, 8(5), 118; https://doi.org/10.3390/inventions8050118 - 21 Sep 2023
Viewed by 296
Abstract
The low-frequency vibro-acoustic characteristics of a mechanical equipment—floating raft—cylindrical shell—underwater acoustic field coupled system with nonlinear supports are studied in this paper. Firstly, the state space equations were established by a modal superposition theory for the coupled system, and a modal parameter identification [...] Read more.
The low-frequency vibro-acoustic characteristics of a mechanical equipment—floating raft—cylindrical shell—underwater acoustic field coupled system with nonlinear supports are studied in this paper. Firstly, the state space equations were established by a modal superposition theory for the coupled system, and a modal parameter identification method was deduced and verified for the cylindrical shell—underwater acoustic field coupled subsystem. On this basis, the formulas were derived for transmitted power flow in the coupled system, and the nonlinear stiffness constitutive relation of the vibration isolation supports was expressed by softening and hardening characteristics. Finally, dynamic simulations were carried out by the Runge—Kutta method to analyze the effect of nonlinear stiffness characteristic parameters on the low-frequency vibration modes and vibro-acoustic transfer characteristics in the coupled system. The research shows that a superharmonic phenomenon is common in the steady vibration mode of the coupled system with a nonlinear softening (or hardening) stiffness characteristic under harmonic excitation. The stronger the softening (or hardening) stiffness characteristic is, the more complex the vibration form is, and the smaller (or larger) the low-frequency vibro-acoustic transfer level in resonance regions is. Full article
(This article belongs to the Special Issue Innovative Research and Applications in Hydrodynamics and Flow Control)
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Article
Mathematical Model of the Working Processes of the Gas Cap of a Piston Pump Installed in the Discharge Line
by
Victor Shcherba
and
Irina Bulgakova
Inventions 2023, 8(4), 95; https://doi.org/10.3390/inventions8040095 - 21 Jul 2023
Viewed by 354
Abstract
A mathematical model of the working processes occurring in the gas cap has been developed on the basic fundamental laws of conservation of energy, mass and motion, and the equation of state, both taking into account the change in the mass of the [...] Read more.
A mathematical model of the working processes occurring in the gas cap has been developed on the basic fundamental laws of conservation of energy, mass and motion, and the equation of state, both taking into account the change in the mass of the gas due to phase transitions and the solubility of the gas in the liquid, and without taking them into account with a dividing element. In addition, there was developed a mathematical model of the liquid flow from the gas cap through a pipeline of constant cross section. It was found from the results of a numerical experiment that to reduce the feed irregularity, it is necessary to increase the length of the pipeline and the crankshaft revolutions, in addition to the known ratio of the volume of gas in the cap to the working volume of the pump; an increase in discharge pressure and an increase in the diameter of the connecting pipeline increases the feed irregularity. Full article
(This article belongs to the Special Issue Innovative Research and Applications in Hydrodynamics and Flow Control)
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