Sökning: "Computational Fluid Dynamics"

Visar resultat 26 - 30 av 355 uppsatser innehållade orden Computational Fluid Dynamics.

1. 26. 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. 27. Modeling for characterization of continuous casting simulator using CFD

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Filip Reineholm-Hult; [2023]
   Nyckelord :Continuous casting; CFD; computational fluid dynamics;

   Sammanfattning : In order to improve the continuous casting process of steel, it’s important to have an understanding of the fuid mechanics of the casting process. As experiments on a real caster are usually impractical, both physical and numerical modeling are important for creating this understanding. LÄS MER

4. 28. Optimisation of the gas atomisation process used in aluminium powder production : To improve morphology by minimising satellite formations

   Kandidat-uppsats, KTH/Materialvetenskap

   Författare :Henrik Hedlin; Johan Nymo; [2023]
   Nyckelord :;

   Sammanfattning : There exists a lack of information and an exact understanding of the gas atomisation process resulting in the use of trial and error methods in the industry. The lack of information is the result of the difficulties in observing the actual process as it occurs, something that the use of computational fluid dynamics may be able to substitute. LÄS MER

5. 29. Experimental Study of Flow Fields in Moving Bed Biofilm Reactors

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Shea Nee Chew; [2023]
   Nyckelord :Moving bed biofilm reactors; Biofilm carriers; Mechanical mixing; Mixer configurations; Carrier mixing; Biofilmsreaktorer med rörlig bädd; Biofilmsbärare; Mekanisk blandning; Blandarkonfigurationer; Bärarblandning;

   Sammanfattning : With the rise in global energy prices, as well as energy consumption being the largest source of greenhouse gas emissions, biofilm-based systems utilized for wastewater treatment, such as moving bed biofilm reactors (MBBRs), have grown in popularity for their lower energy consumption compared to conventional activated sludge processes. However, this technology requires large amounts of energy to constantly distribute and suspend its biofilm carrier within the reactor by either aerators or mechanical mixers. LÄS MER

7. 30. Range impact of a high velocity aft-propeller on a subsonic aerodynamic body

   Master-uppsats, Luleå tekniska universitet/Rymdteknik

   Författare :Jens Teodor Mattsson; [2023]
   Nyckelord :propeller; transsonic; fluid dynamics; cfd;

   Sammanfattning : This master’s thesis is aimed to examine the possible range increase of a ballistically fying body equipped with a propeller working at transonic velocities. To determine whetherthe propeller will provide an improvement in range, results from simulations are compared to corresponding cases of similar bodies fying without a propeller. LÄS MER