Sökning: "Eddy current"

Visar resultat 1 - 5 av 40 uppsatser innehållade orden Eddy current.

1. 1. A numerical comparison of the thermoacoustics for different equivalence ratios for n-dodecane using LES

   Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

   Författare :Björn Jarfors; [2023]
   Nyckelord :Computational Fluid Dynamics; Bluff-body stabilised flames; Large Eddy Simulation; Thermoacoustics; Acoustics; NEUMANN Project; Jet engines; Aero engines; Airplanes; Combustion; Numerics; Technology and Engineering;

   Sammanfattning : Klimatförändringarna påverkar vår värld och det behövs ett mer hållbart samhälle. Flygindustrin är i behov av förändring, men flygmotorer är mycket komplexa och tar tid att utveckla. Termoakustiska instabiliteter har kraften att förstöra en motor, men också att minska miljöpåverkan. LÄS MER

3. 2. Evaluation of Numerically Developed Models of an ECB for Estimating the Braking Torque on the SkiCrosser

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Filip Andersson; William Marin; [2023]
   Nyckelord :;

   Sammanfattning : Cross-country skiing is a popular method of exercising that builds strength, stamina and engages the entire body. As cross-country skiing requires snow to be present, it is typically only performed during the winter, resulting in a rather limited way of exercising. LÄS MER

4. 3. Active flow control of the turbulent boundary layer over a NACA4412 wing profile for skin friction drag reduction

   Master-uppsats, KTH/Teknisk mekanik

   Författare :Giacomo Semprini Cesari; [2023]
   Nyckelord :Active flow control; drag reduction; numerical simulations; turbulent boundary layer; wings;

   Sammanfattning : In the context of building a framework for active flow control of turbulent boundary layers in wings, a set of large-eddy simulation (LES) are implemented in OpenFOAM. The flow around a NACA4412 wing profile is simulated at 5° angle of attack and Re_c = 400˙000. LÄS MER

5. 4. Design of a small-scale wave energy converter

   Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

   Författare :Sumaya Farjana; [2022]
   Nyckelord :small-scale point absorber; scaling factors; damping coefficient;

   Sammanfattning : In this study, a small-scale point absorber wave energy converter has been designed contemplating a full-scaled point absorber in the Mediterranean Sea state. The scaling factor for the small-scaled version has been determined by the damping coefficient calculation of the power take-off in 1:10, 1:15, and 1:20 scaling factors. LÄS MER

7. 5. Process monitoring of turbine blades : Monitoring of blade tip clearance using eddy current sensors

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Hampus Andersson; [2022]
   Nyckelord :Blade tip clearance; Blade tip timing; Eddy current sensor; Turbine monitoring; Maintenance.; Bladtoppspel; Bladvibrationer; Eddy current sensorer; Turbinövervakning; Underhåll.;

   Sammanfattning : This thesis has been a collaboration between the Royal Institute of Technology (KTH) and Siemens Energy which invest in the research facility at KTH. The objective was to investigate the use of eddy current sensors in real-time monitoring of turbine blades. LÄS MER