A synergistic glance at the prospects of distributed propulsion technology and the electric aircraft concept for future unmanned air vehicles and commercial/military aviation

Dihedral influence on lateral–directional dynamic stability on large aspect ratio tailless flying wing aircraft

This work outlines the different aerodynamic aspects of box-wing design i.e. an unconventional aircraft design configuration exhibiting the capability of reducing induced drag. Being a nonplana ...

Preliminary aerodynamic investigation of box-wing configurations using low fidelity codes

This paper presents a multi-disciplinary analysis methodology for a box-wing aircraft configuration optimised for a given mission scenario. This conceptual design methodology and associated toolchain combines well-established vortex lattice analysis and a newly developed structural analysis tool called WingMASS, allowing the design space to be explored from a combined aerodynamics and structural design perspective. For a given mission scenario, the method optimises a box-wing configuration and compares it with an equivalent conventional configuration. This study shows that, for a given mission, a boxwing configuration can lead to a fuel burn reduction of up to 5% by optimising aspect ratio, horizontal and vertical wing separation.

Multi-disciplinary analysis and optimisation methodology for conceptual design of a box-wing aircraft

An Evolutionary Geometry Parametrization for Aerodynamic Shape Optimization Xiaocong Han Masters of Applied Science Graduate Department of Aerospace Engineering University of Toronto 2011 An evolutionary geometry parametrization is established to represent aerodynamic configurations. This geometry parametrization technique is constructed by integrating the classical B-spline formulation with the knot insertion algorithm. It is capable of inserting control points to a given parametrization without modifying its geometry. Taking advantage of this technique, a shape design problem can be solved as a sequence of optimizations from the basic parametrization to more refined parametrizations. Owing to the nature of the B-spline formulation, feasible parametrization refinements are not unique; guidelines based on sensitivity analysis and geometry constraints are developed to assist the automation of the proposed optimization sequence. Test cases involving airfoil optimization and induced drag minimization are solved adopting this method. Its effectiveness is demonstrated through comparisons with optimizations using uniform refined parametrizations.

An Evolutionary Geometry Parametrization for Aerodynamic Shape Optimization

Development of Novel Aircraft Concepts to Reduce Noise and Global Warming Effects

Development of a Broad Delta Airframe and Propulsion Concepts for Reducing Aircraft Noise around Airports

This chapter describes the noise and global warming effects produced by current commercial aircraft. It also describes noise and pollution sources, and proposes technologies to mitigate them.

Sunil Mistry

Papers

Development of Novel Aircraft Concepts to Reduce Noise and Global Warming Effects

Development of a Broad Delta Airframe and Propulsion Concepts for Reducing Aircraft Noise around Airports

Commercial Aircraft Design for Reduced Noise and Environmental Impact