Essays about: "Tip Gap"

Showing result 6 - 10 of 10 essays containing the words Tip Gap.

  1. 6. 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. 7. Evolution of Cavity Tip Vortices in High-Pressure Turbines

    University essay from Uppsala universitet/Elektricitetslära

    Author : Albin Berglund; [2017]
    Keywords : CFD; turbomachinery; tip gap; fluid dynamics; cavity; rotor blade;

    Abstract : This degree project in applied physics studies the tip gap flows over the rotor blades of a high-pressure turbine. The rotor blade used in the study has an improved design that utilizes both a cavity tip and an uneven profiling to reduce turbine loss. READ MORE

  4. 8. Evaluation of Zinc Oxide Nano-Microtetrapods for Biomolecule Sensing Applications

    University essay from KTH/Funktionella material, FNM

    Author : Wei Zhao; [2015]
    Keywords : zinc oxide tetrapods; nano-microstructure; glucose oxidase; glucose sensor;

    Abstract : Zinc oxide (ZnO) is a well-known II-VI semiconductor material that has gained renewed interest in the past decade due to the developments of growth technologies and the availability of high-quality ZnO bulk single crystals. Owing to a wide direct band gap (3. READ MORE

  5. 9. The tip of the iceberg lettuce : what direct and indirect factors enable knowledge and skill sharing in community gardens?

    University essay from Lunds universitet/LUCSUS

    Author : Rebecca Laycock; [2013]
    Keywords : action research; social development; urban agriculture; sustainability science; Canada; Social Sciences;

    Abstract : Concerns about the decline in knowledge concerning food growing stemming stem from the Green Revolution, as well as the rapid urbanization since the beginning of the 20th Century. There is a gap in the literature about community gardening in industrialized English-speaking countries, and since sharing of knowledge is a well-documented achievement of community gardens, the aim of this thesis is to find out what direct and indirect factors enable knowledge and skill sharing in community gardens. READ MORE

  6. 10. Method development for investigation of real effects on flow around vanes

    University essay from Mekanisk värmeteori och strömningslära

    Author : Jonathan Mårtensson; [2010]
    Keywords : Master s Thesis; Method Development; Real effects; Turbomachinery; Turbine Flow; Secondary Flow; ICEM; Block Mesh Topology; Tip Gap;

    Abstract : In the development of turbo machinery components it's desirable to not spend more time than necessary when setting up aero-thermal calculations to investigate uncertainties in the design. This report aims to describe general thoughts used in the development of an ICEM-mesh script and the possible configurations in the script file which enables the user to build mesh-grids with/without clearance gap at the hub and/or shroud for different blade geometries. READ MORE