Computational analysis of high speed super-cavitating projectiles for reduction of hydrodynamic drag using cavitator optimisation

被引:0
|
作者
Dharmaraj, Rohini [1 ]
Arunachalam, Amarkarthik [1 ]
Gurunath, Sivaraj [1 ]
Athmanathan, Haran Pranatharthy [2 ]
机构
[1] Bannari Amman Inst Technol, Dept Aeronaut Engn, Erode 638401, India
[2] Pk Coll Engn & Technol, Dept Aeronaut Engn, Coimbatore 641659, India
来源
关键词
super-cavitation projectile; disk cavitator; hydrodynamics; skin friction drag; multiphase flow; WAKE; FLOW;
D O I
10.1504/PCFD.2025.143728
中图分类号
O414.1 [热力学];
学科分类号
摘要
The goal of the paper is the computational analysis of cavitator shape with respect to the forebody of the projectile, which recommends the supercavitation phenomenon. The main target is to provide a phase-changing mechanism for two-phase fluid flow simulation. By employing ANSYS Fluent for disk cavitator, a steady and incompressible two-phase fluid has been analysed, and during the simulation, cavitation is observed. For the designed geometry of the forebody of the projectile, multiphase flow has been chosen, for varying cavitation number of 0.1-0.01, to optimise the disk cavitator's diameter to begin an effective creation of supercavity. The computational analysis of the result displays about the cavity formation, cavity growth, cavity body, and drag prediction for the projectile. To optimise the cavitator diameter, which plays a key role in the formation of supercavitation, 3 mm cavitator disk diameter with a disk to projectile diameter ratio of 0.375 generates the minimum hydrodynamic drag.
引用
收藏
页数:16
相关论文
共 35 条
  • [1] Computational analysis of turbulent super-cavitating flow around a two-dimensional wedge-shaped cavitator geometry
    Park, Sunho
    Rhee, Shin Hyung
    COMPUTERS & FLUIDS, 2012, 70 : 73 - 85
  • [2] NUMERICAL ANALYSIS OF SUPER-CAVITATING FLOW AROUND A TWO-DIMENSIONAL CAVITATOR GEOMETRY
    Park, Sunho
    Rhee, Shin Hyung
    FLUID MEASUREMENTS AND INSTRUMENTATION CAVITATION AND MULTIPHASE FLOW ADVANCES IN FLUIDS ENGINEERING EDUCATION MICROFLUIDICS, VOL 2, 2012, : 199 - 209
  • [3] Hydrodynamics Analysis on the High-Speed Surface Vehicle with Super-Cavitating Hydrofoils
    Zhao, S.
    Xiang, M.
    Zhou, H.
    Zhang, W.
    JOURNAL OF APPLIED FLUID MECHANICS, 2018, 11 (04) : 1005 - 1012
  • [4] A Multiphase RANSE-based Computational Tool for the Analysis of Super-Cavitating Hydrofoils
    Bonfiglio, Luca
    Brizzolara, Stefano
    NAVAL ENGINEERS JOURNAL, 2016, 128 (01) : 47 - 64
  • [5] NUMERICAL ANALYSIS ON DRAG REDUCTION OF HIGH-SPEED TRAIN USING ROUGH SURFACE
    Yin, Bo
    Yang, Guowei
    PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2018, VOL 2, 2018,
  • [6] High-speed planing hull drag reduction using tunnels
    Yousefi, Reza
    Shafaghat, Rouzbeh
    Shakeri, Mostafa
    OCEAN ENGINEERING, 2014, 84 : 54 - 60
  • [7] Hydrodynamic Analysis and Drag-Reduction Design of an Unmanned Underwater Vehicle Based on Computational Fluid Dynamics
    Li, Xuecheng
    Zhang, Desheng
    Zhao, Ming
    Wang, Xin
    Shen, Yu
    JOURNAL OF MARINE SCIENCE AND ENGINEERING, 2024, 12 (08)
  • [8] Principle study of bubble drag reduction and similarity analysis for high speed vehicles
    He, Shu-Long
    Xing, Sheng-De
    Cheng, Hong-Xia
    Ni, Qi-Jun
    Chuan Bo Li Xue/Journal of Ship Mechanics, 2010, 14 (09): : 951 - 957
  • [9] Reduction of high-speed water entry load for slender projectiles by using linear buffers
    Zhang, Chengchun
    Zhao, Fanchao
    Wu, Zhengyang
    Sun, Xiaowei
    Shen, Chun
    Qi, Debo
    Feng, Wengang
    PHYSICS OF FLUIDS, 2025, 37 (03)
  • [10] Drag reduction mechanism using plasma synthetic jet in high-speed flow
    Gao S.
    Ding B.
    Xie X.
    Li Z.
    Chen L.
    Qian S.
    Jiao Z.
    Bai G.
    Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica, 2023, 44