The need to rapidly scan large design spaces during conceptual design calls for computationally inexpensive tools such as the vortex lattice method (VLM). Although some VLM tools, such as Vorview have been extended to model fully-supersonic flow, VLM solutions are typically limited to inviscid, subcritical flow regimes. Many transport aircraft operate at transonic speeds, which limits the applicability of VLM for such applications. This paper presents a novel approach to correct three-dimensional VLM through coupling of two-dimensional transonic small disturbance (TSD) solutions along the span of an aircraft wing in order to accurately predict transonic aerodynamic loading and wave drag for transport aircraft. The approach is extended to predict flow separation and capture the attenuation of aerodynamic forces due to boundary layer viscosity by coupling the TSD solver with an integral boundary layer (IBL) model. The modeling framework is applied to the NASA General Transport Model (GTM) integrated with a novel control surface known as the Variable Camber Continuous Trailing Edge Flap (VCCTEF).


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    Titel :

    Aerodynamic Modeling of Transonic Aircraft Using Vortex Lattice Coupled with Transonic Small Disturbance for Conceptual Design


    Beteiligte:
    D. Chaparro (Autor:in) / G. E. C. Fujiwara (Autor:in) / E. Ting (Autor:in) / N. Nguyen (Autor:in)

    Erscheinungsdatum :

    2016


    Format / Umfang :

    15 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch






    Aerodynamic Modeling of Transonic Aircraft Using Vortex Lattice Coupled with Transonic Small Disturbance for Conceptual Design (AIAA 2016-3418)

    Chaparro, Daniel / Fujiwara, Gustavo E. / Ting, Eric et al. | British Library Conference Proceedings | 2016


    HIGHER FIDELITY TRANSONIC AERODYNAMIC MODELING IN PRELIMINARY AIRCRAFT DESIGN

    Crovato, A. / Dimitriadis, G. / Terrapon, V. E. | British Library Conference Proceedings | 2018