Essays about: "cavitation erosion"

Showing result 1 - 5 of 6 essays containing the words cavitation erosion.

  1. 1. Cavitation analysis on test rig. : An experimental and CFD study executed in collaboration with Epiroc AB

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Oskar Kuoppala; [2021]
    Keywords : CFD; Cavitation; Water Hammer;

    Abstract : This master thesis project was done in collaboration with Epiroc Group Ab. Epiroc supplies high-quality drills of various types that can be used both above and below ground. A major problem in their percussive rock drills is that that cavitation is formed. Cavitation is a phenomenon that occurs when a fluid is subject to a sudden pressure drop. READ MORE

  3. 2. Fluid/Material Coupled Numerical Analysis of Single Bubble Collapse Near a Pit on a Wall

    University essay from KTH/Strömningsmekanik och Teknisk Akustik

    Author : Daiki Makii; [2020]
    Keywords : Bubble Dynamics; Cavitation Erosion; Numerical Analysis; Fluid Material Coupled Numerical Method; Homogeneous Model; Elastic Body Material; Erosion Pit;

    Abstract : In order to elucidate the progression mechanism of cavitation erosion, the behaviors of a single cavitation bubble collapse near a pit on a wall and both the resulting pressure wave in fluid and stress wave in material are investigated in detail. To find out the mechanism of cavitation erosion, many experimental studies on the bubble collapse behavior near a flat rigid wall and the resulting material damage have been conducted so far. READ MORE

  4. 3. Experimental Study of Metallic Surfaces Exposed to Cavitation

    University essay from KTH/Materialvetenskap

    Author : Marcio Freitas De Abreu; [2018]
    Keywords : cavitation; cylinder liner; lamellar gray cast iron; erosion pitting; graphite class; cavitation;

    Abstract : Cylinder liners in heavy-duty truck engines are subjected to intense vibrations and may sustain damage from the cavitation of bubbles in the coolant liquid, with some risks of leakage and engine breakdown. An ultrasonic oscillating probe was used to simulate the pitting rates and behavior of samples extracted from cylinder liners, which are made of grey cast iron, with differences in surface roughness, glycol and inhibitor content in coolant, coolant temperature and graphite flake class; bainitic microstructures were also tested. READ MORE

  5. 4. Thin metal patch to FRP propeller: Experimental testing of bonding systems

    University essay from KTH/Lättkonstruktioner

    Author : Mårten Kreiss Amberg; [2015]
    Keywords : ;

    Abstract : To enable the use of carbon fibre reinforced polymer (CFRP) propellers for merchant vessels, the problem of cavitation must be solved. The matrix of the FRP is generally brittle and more sensitive to cavitation erosion than the more conventional metal propeller blades. Nakashima Propeller Co. READ MORE

  6. 5. Experimental Simulation of Cavitation Erosion

    University essay from KTH/Materialvetenskap

    Author : Nina Hedlund; [2014]
    Keywords : cavitation erosion; bronzes; cavitation;

    Abstract : .... READ MORE