Essays about: "pressure surge"

Showing result 11 - 15 of 21 essays containing the words pressure surge.

  1. 11. Study of tip clearance flows

    University essay from KTH/Flygdynamik

    Author : Camille Fournis; [2018]
    Keywords : turbomachine; compressor; tip leakage flow; vortex; turbomaskin; kompressor; gapflöde; virvel;

    Abstract : The tip leakage vortex is responsible for the generation of stagnation pressure losses inside the compressor along with the outbreak of rotating stall and surge. The current paper analytically proved that a part of the losses is proportional to the vortex circulation squared. READ MORE

  3. 12. Compressor CFD simulation method development : A CFD study

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Johan Björk; [2018]
    Keywords : CFD; centrifugal compressor; CFX; CHT; Conjugate Heat Transfer; Surge;

    Abstract : This master thesis project consisted of three parts that all were performed through CFD simulations with the purpose to develop Scania's methods in the subject of CFD. All parts included simulations on Scania's SC92T70 centrifugal compressor. READ MORE

  4. 13. Flow simulations with relevance to a centrifugal compressor and the eect of the inlet geometry

    University essay from KTH/Mekanik

    Author : Ander Eza; [2015]
    Keywords : ;

    Abstract : Turbocharging the internal combustion engine is one of the most effective ways to reduce the fuel consumption and fulll the green house gas emissions requierements. Nevertheless, this techinque has some limitations that need to be addressed in order to improve the turbocharger performance. READ MORE

  5. 14. 3D-modeling of swing check valve with connection to dynamic behavior used in system studies

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Christoffer Björk; [2015]
    Keywords : Swing check valve; fluid mechanics; pressure surge; waterhammer; Fluent; Technology and Engineering;

    Abstract : This Master’s Thesis is the result of the collaboration between The Technical Faculty of Lund University and TÜV NORD Sweden AB. Focus has been directed towards the nuclear industry where this thesis is one of several other Master’s Theses regarding the dynamic modeling of a swing check valve. READ MORE

  6. 15. Expanding operation ranges using active flow control in Francis turbines

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

    Author : Sebastian Adolfsson; [2014]
    Keywords : Hydropower; flow control; rheingans; vortex rope; air injection; water injection; draft tube; pressure surge;

    Abstract : This report contains an investigation of fluid injection techniques used in the purpose of reducing deleterious flow effects occurring in the draft tube of Francis turbines when operating outside nominal load. There is a focus on implement ability at Jämtkrafts hydroelectric power plants and two power plants were investigated, located in series with each other named Lövhöjden and Ålviken. READ MORE