Stochastic Behavior (Randomness) of Acoustic Pressure Pulses in the Near-Subcavitating Range : Fluids Engineering

スポンサーリンク

概要

• 論文の詳細を見る

• To clarify the stochastic (random) behavior of cavitation in the near-sub-cavitating range, we statistically analyzed the acoustic pressure pulses generated from cavitation, and discussed subcavitation by introducing the threshold level selected for pulse detection for various states of test water, as well as the behavior of cavitation bubbles. We found : (i) the stochastic behavior is remarkably observed for a selected higher threshold level, and (ii) after the bubble cloud is initiated, the pulse energy directly related to eroslon deviates from the n-th power of cavitation number, σ, and decreases rapidly with σ.

• 一般社団法人日本機械学会の論文

著者

• HIGUCHI Jiro

  Institute of Fluid Science, Tohoku University

• OBA Risaburo

  Institute of Fluid Science, Tohoku University

• Sato Keiichi

  Professor, Kanazawa Institute of Technology

• Oba Risaburo

  Institute Of Fluid Science Tohoku University

• ITO Yukio

  Institute of High Speed Mechanics, Tohoku University

• MIYAKURA Hideto

  Tohoku University

• SAKAMOTO Kenji

  Tohoku Gakuin University

• Ito Y

  Inst. Technol.

• Higuchi J

  Institute Of Fluid Science Tohoku University

• Higuchi Jiro

  Institute Of Fluid Science Tohoku University

• MIYAKURA Hideto

  Institute of High Speed Mechanics, Tohoku University

• SATO Keiichi

  Kanagawa Institute fo Technology

• Sato Keiichi

  Professor Kanazawa Institute Of Technology

• Ito Yukio

  Institute Of Fluid Science Tohoku University

関連論文

• Experimental Investigation of Cavitation in an Axisymmetric Rectangular Groove
• Jet Structure Analyses on High-Speed Submerged Water Jets through Cavitation Noises
• Several Kinds Vibrations Arisen around a Typical Highspeed SupercavitatingHydrofoil with Various Nose Shapes
• Appearance of Cavitation and Cavitation-Acoustic-Pulses (Especially in Decelerated-and Accelerated-Flow)
• Singular Behavior of Erosion-Standoff-Distance-Curves for Highspeed-Water-Jets in Air
• Behavior of Cavitation Nuclei in High-Speed Submerged Water-Jet-Tests
• Marked Change in Subcavitation-Cascade Performance Resulting from a Very Slight Modification in Leading Edges
• Spatial Distribution of Cavitation-Shock-Pressure Around a Jet-Flow Gate-Valve : Series B : Fluid Engineering, Heat Transfer, Combustion, Power, Thermophysical Properties
• Base-Vented Performance Simulation for Supercavitating Hydrofoils with Pseudo-Kirchhoff Noses Operating within the Subcavitating Region
• SEM Observation of the Vibratory Cavitation-Fracture Mode during the Incubation Period and the Small Roughness Effect
• Developing Stages of Ultrasonically Produced Cavitation Erosion and Corresponding Surface Roughness
• An Indirect Vibratory Method Capable of Simulating Several Cavitating States
• Several Trials in the Search for a Complete Cavitation Concept
• Flow Calculation of a Mixed-Flow Runner, Especially with Respect to a Marked Effect of the Blade Loading
• SEM Studies of Particles Produced by Cavitation Erosion
• Characteristics of Bubble-Collapse Pressures in a Karman-Vortex Cavity
• Experimental Study of Cavity Flow Behavior on a 2-D Hydrofoil
• Spatial Distribution of Cavitation-Shock-Pressures around a Jet-Flow Gate-Valve
• Cavitation-Probable Bubbles Flowing Down from a Cavitating Branch Duct
• A Peculiar Behavior of Cavitation-Nuclei-Size Distributions in Sample Water Under Vibratory Erosion Tests
• Stochastic Behavior (Randomness) of Acoustic Pressure Pulses in the Near-Subcavitating Range : Fluids Engineering
• Cavitation Observation in a Jet-flow Gate-valve
• Peculiar Behavior of Disc Drag during Force Measurements for Supercavitating Hydrofoils
• Cavity Separations and Associated Impulsive Pressures around a Cavitating Circular Cylinder (1st Report, Vortex Cavitation in the Wake and Attached Cavitation)
• Peculiar Behavior of Disc Drag During Force Measurements for Super cavitating Hydrofoils
• Unsteady Behavior of Violent-Vibrations Depending upon Type of Cavitation
• Studies on Low-Erosion Butterfly Valves : Suppression of Erosive Vortex Cavitation
• High-Speed Observations of the Cavitation Cloud around a High-Speed Submerged Water Jet
• Suitable Region of High-Speed Submerged Water Jets for Cutting and Peening
• High-Speed Observations of the Vibratory Cavitation Accompanying Hard Erosion
• High sensitivity of a novel ELISA for anti-M2 primary biliary cirrhosis
• High-Speed Stereo-Observations of Violent Vibrations Associated with Three Types of Cavitation
• Dissolved Gas-Content-Effects on the Stochastic Behavior of Desinent Cavitation : 1st Report, Case of Air Saturated Water : Series B : Fluid Engineering Heat Transfer Combustion, Power Thermophysical Properties
• Railgun Experiments

もっと見る 閉じる

スポンサーリンク