Essays about: "Aerodynamic scaling"

Found 4 essays containing the words Aerodynamic scaling.

  1. 1. Effect of Axial Gap Distance on Transonic Compressor Performance

    University essay from KTH/Kraft- och värmeteknologi

    Author : Joseph Sadek; [2015]
    Keywords : Axial Gap Distance; Transonic Compressors; Aerodynamic Performance; CFD; Harmonic Balance; inter-row gap;

    Abstract : The modern trend of gas turbines design is towards lighter, highly efficient,and more compact engines. Such situation imposes on engineers to continuouslysearch for improved and optimum designs. The thesis presented aims at researching possible performance improvements regarding axial gapdistance in transonic compressors. READ MORE

  3. 2. An Experimental Study on Global TurbineArray Eects in Large Wind Turbine Clusters

    University essay from KTH/Mekanik

    Author : Patrik Berkesten Hägglund; [2013]
    Keywords : GTAE; Global Turbine Array Eects; Wind tunnel; Reynolds number; Tip speed ratio; Thrust coecient; Induction factor; Turbine model; Wake eects; Wind farm; Aerodynamic scaling; Thrust measurement; Boundary corrections; Velocity prole;

    Abstract : It is well known that the layout of a large wind turbine cluster aects the energyoutput of the wind farm. The individual placement and distances betweenturbines will in uence the wake spreading and the wind velocity decit. READ MORE

  4. 3. Evaluation of a CFD method for estimating aerodynamic loads on external stores on JAS 39 Gripen

    University essay from Institutionen för fysik

    Author : Jakob Öhrman; [2011]
    Keywords : aerodynamic loads; CFD; computational fluid dynamics; simulation; aircraft; external stores; scaling; Saab Aerosystems; JAS 39 Gripen; aerodynamik; luftlaster; CFD; numerisk strömningsmekanik; simulering; flygplan; yttre utrustning; skalning; Saab Aerosystems; JAS 39 Gripen;

    Abstract : Loads determination for external stores on fighter aircraft is an important task for manufacturers in ensuring the safe operation of their aircraft. Due to the large number of possible store combinations, wind tunnel tests – the primary approach to obtaining loads data – cannot be performed for all configurations. READ MORE

  5. 4. Aerodynamic Loads on External Stores - Saab 39 Gripen : Evaluation of CFD methods for estimating loads on external stores

    University essay from Mekanisk värmeteori och strömningslära

    Author : Christian Spjutare; [2009]
    Keywords : CFD; aerodynamic loads; external store; aircraft; scaling; ADAPDT; Edge; Navier-Stokes; Euler; delta-effect; Sumo; TetGen; Gripen; mesh;

    Abstract : External stores mounted on aircraft generate loads which need to be estimated before first takeoff. These loads can be measured in a wind tunnel but since the possible store configurations are basically endless, testing them all is neither economically feasible nor time efficient. Thus, scaling based on geometrical similarity is used. READ MORE