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Showing result 1 - 5 of 9 essays matching the above criteria.

1. 1. CFD Based External Heat Transfer Coefficient Predictions on a Transonic Film-Cooled Gas Turbine Guide Vane : A Computational Fluid Dynamics Study on the Von Karman Institute LS94 Test Case

   University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

   Author : Rosalie Johnsson; Lilian Asiegbu; [2022]
   Keywords : gas turbine; turbine inlet guide vane; film-cool; film cool; Computational Fluid Dynamics; CFD; heat transfer coefficient; Shear Stress Transport k-ω; SST k-ω; Scale Resolving Hybrid; SRH; turbulence modelling;

   Abstract : The turbine inlet guide vanes of a gas-turbine are subjected to extreme hot gas temperatures which increases the risk of mechanical failure and overall reduces the component lifespan. Hence, it is of great interest for gas-turbine manufacturers to establish methods for accurately estimating the temperature distribution along the vane surface. READ MORE

3. 2. Improving gas flow in gas atomization

   University essay from KTH/Materialvetenskap

   Author : Zhiwei Qiu; [2021]
   Keywords : ;

   Abstract : Gas atomization is a cost-effective processing method to produce fine, spheroidized metal powders. During the process, high velocity jets of gas are sprayed at a molten metal stream to break it into small droplets, which will solidify and form the powder particles. READ MORE

4. 3. Numerical Investigation of the Near FieldZone Flow Behavior of Isothermal CornerImpinging Jet Ventilation Using CFD

   University essay from Högskolan i Gävle/Avdelningen för byggnadsteknik, energisystem och miljövetenskap

   Author : Too-chukwu C. Ogbuagu; [2021]
   Keywords : Ventilation; Computational fluid dynamics;

   Abstract : Abstract The impinging jet ventilation's importance in providing better air distribution and energy-efficient operation, as well as both its heating and cooling flexibility potential cannot be overemphasized. This is because acceptable indoor air quality and its environmental conditions are essential to occupant’s wellbeing, comfort, productivity, and improved cognitive function. READ MORE

5. 4. External Heat Transfer Coefficient Predictions on a Transonic Turbine Nozzle Guide Vane Using Computational Fluid Dynamics

   University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

   Author : Daniel Enico; [2021]
   Keywords : CFD; LS89; transonic turbine; transition; transition model; turbulence decay; turbulence intensity; length scale; turbulence characteristics; HTC; external heat transfer coefficient; Steelant-Dick postulation;

   Abstract : The high turbine inlet temperature of modern gas turbines poses a challenge to the material used in the turbine blading of the primary stages. Mechanical failure mechanisms are more pronounced at these high temperatures, setting the lifetime of the blade. READ MORE

6. 5. A COMPARISON OF THE OBSERVED WAKE EFFECT WITH SEVERAL WAKE MODELS USING BOTH ANALYTIC AND CFD SIMULATION METHODS - FOR THE CASE OF BLOCK ISLAND OFFSHORE WIND FARM

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Robbie Pratt; [2019]
   Keywords : Block Island Wind Farm; Offshore Wind Power; Wake Effect; Wake Modelling; WindPRO; WindSIM; Openwind; CFD modelling.;

   Abstract : This paper sets out to analyze the observed wake effect at Block Island Wind Farm. A comparison is made between several wake simulation methods and the observed data at Block Island using analytic and CFD (Computational Fluid Dynamics) modelling methods. READ MORE