Sökning: "ADAPDT"

Hittade 2 uppsatser innehållade ordet ADAPDT.

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

    Master-uppsats, Mekanisk värmeteori och strömningslära

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

    Sammanfattning : 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. LÄS MER

  3. 2. Modelling & implementation of Aerodynamic Zero-lift Drag into ADAPDT

    M1-uppsats, Akademin för innovation, design och teknik

    Författare :David Bergman; [2009]
    Nyckelord :drag; zero-lift drag; aerodynamics; nollmotsånd; aerodynamik; motstånd;

    Sammanfattning : The objective of this thesis work was to construct and implement an algorithm into the programADAPDT to calculate the zero-lift drag profile for defined aircraft geometries. ADAPDT, shortfor AeroDynamic Analysis and Preliminary Design Tool, is a program that calculates forces andmoments about a flat plate geometry based on potential flow theory. LÄS MER