Publication detail

Unconventional Lifting Systems of an Aeroplane

FRIEDL, J.

Czech title

Nekonvenční nosné plochy letounu

English title

Unconventional Lifting Systems of an Aeroplane

Type

dissertation

Language

en

Original abstract

Presented paper deals with unconventional lifting systems of an aeroplane. These configurations are constantly one of the main parts of the aerodynamic research in an effort to increase performances of today's aeroplanes. Main goal of the work is to present optimization possibilities for these configurations at a certain flight regime for a chosen aircraft category. Determination of aerodynamic characteristics of arbitrary configurations is done via panel method approach and completed with friction drag estimation. Optimization methods were covered by a genetic algorithm and an evolution strategy. Results show that total drag estimation can be lowered, but further development is needed.

Czech abstract

Uvedený příspěvek se zabývá nekonvenčními nosnými plochami letounů. Tyto konfigurace jsou neustále oblastí výzkumu při úsilí posunout výkony nynějších letounů. Hlavní cíl práce je zaměřen na možnosti optimalizace nekonvenčních konfigurací pro vybranou kategorii letounů na charakteristickém režimu letu. Panelové metody jsou použity pro předpověď aerodynamických charakteristik a ve výpočtu je zahrnut i odhad třecího odporu. Optimalizační algoritmus využívá kombinace genetických algoritmů a evoluční strategie. Výsledky ukazují, že celkový odpor nosných ploch může být snížen, avšak ukazují i potřebu dalšího vývoje.

English abstract

Presented paper deals with unconventional lifting systems of an aeroplane. These configurations are constantly one of the main parts of the aerodynamic research in an effort to increase performances of today's aeroplanes. Main goal of the work is to present optimization possibilities for these configurations at a certain flight regime for a chosen aircraft category. Determination of aerodynamic characteristics of arbitrary configurations is done via panel method approach and completed with friction drag estimation. Optimization methods were covered by a genetic algorithm and an evolution strategy. Results show that total drag estimation can be lowered, but further development is needed.

Keywords in English

aerodynamic, unconventional lifting system, panel methods, optimization, genetic algorithm

Released

01.08.2006

Publisher

VZLÚ, a.s.

Location

Praha

Pages from–to

17–20

Pages count

4

BIBTEX


@phdthesis{BUT66792,
  author="Jan {Friedl},
  title="Unconventional Lifting Systems of an Aeroplane",
  year="2006",
  month="August",
  pages="17--20",
  publisher="VZLÚ, a.s.",
  address="Praha"
}