Essays about: "wall pressure"

Showing result 16 - 20 of 121 essays containing the words wall pressure.

  1. 16. EU Sanctions effects on Russia contra Belarus

    University essay from Linnéuniversitetet/Institutionen för samhällsstudier (SS)

    Author : Max Vestin; [2021]
    Keywords : ;

    Abstract : What pressure tools are available in conflicts between countries and when flagrant violationsof political rights and civil liberties occur in a country? There is no absolute answer to whattools are best used. Economic sanctions have been used for a very long time and after WorldWar II sanctions have developed as a tool for different situations and have become targetedinstead of more general as before. READ MORE

  3. 17. A Numerical Study of Melt Pool Heat Transfer in the IVR of a PWR

    University essay from KTH/Fysik

    Author : Yuer Zhao; [2021]
    Keywords : In-vessel melt retention; corium pool; Zr oxidation ratio; melt pool convection; CFD; SST k-ω turbulence model; Smältretention i kärlet; koriumpöl; Zr-oxidationsförhållande; konvektion i en smältpöl; CFD; SST k-ω turbulensmodell;

    Abstract : This thesis aims to provide the thermal condition of melt pool convection by CFD simulation, which is important to the assessment of the invessel melt retention (IVR) strategy widely adopted in Generation III pressurized water reactors (PWRs). As a severe accident mitigation measure, the IVR strategy is realized through external cooling of the lower head of a reactor pressure vessel (RPV). READ MORE

  4. 18. Design of a High Subsonic Nozzle for a Transonic Linear Cascade Operating at Near Stall Conditions

    University essay from KTH/Energiteknik

    Author : César Lucio; [2021]
    Keywords : ;

    Abstract : This thesis presents the results of computational fluid dynamics (CFD) design calculations of a subsonic nozzle operating at Mach number 0.85 in a transonic linear cascade wind tunnel. The purpose of the nozzle is to accelerate a fluid by decreasing the pressure energy and raising the kinetic one. READ MORE

  5. 19. Sound Propagation Through Walls

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Alexander Berglund; Fredrik Herbai; Jonas Wedén; [2021]
    Keywords : acoustics; wave propagation; infrasound; finite difference methods; SBP-SAT; one dimension; analytical calculation; numerical simulation;

    Abstract : Infrasound is undetectable by the human ear and excessive exposure may be a substantial health risk. Low frequency sound propagates through walls with minimal attenuation, making it difficult to avoid. This study interprets the results from both analytical calculations and simulations of pressure waves propagating through a wall in one dimension. READ MORE

  6. 20. 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