Aircraft Ditching Loads Simulation Tool

Megaflow – a Numerical Flow Simulation Tool for Transport Aircraft Design

Some years ago the national CFD project MEGAFLOW was initiated in Germany, which combines many of the CFD development activities from DLR, universities and aircraft industry. Its goal is the development and validation of a dependable and efficient numerical tool for the aerodynamic simulation of complete aircraft. The MEGAFLOW software system includes the block-structured NavierStokes code FLOW...

Validation of a numerical simulation tool for aircraft formation flight

This paper covers a numerical simulation of a NASA test flight utilizing a formation of two F18A Hornet aircraft. The numerical simulation was made using an adapted version of the vortex lattice method TORNADO, allowing for several aircraft to be simulated in a trimmed condition. The numerical results showed good agreement with the flight test data. Some discrepancies due to the numerical model...

Loads Technology for Supersonic Cruise Aircraft

Specifically, a flight program to measure atmospheric turbulence at high altitudes (long wavelengths) in a variety of meteorological conditions is described and some results obtained in high-altitude wind shear are discussed. Results are also presented from wind-tunnel test programs to measure fluctuating pressures associated with over-the-wing engine configurations. Two analyses, a flexible ai...

calculation of aircraft aerodynamic loads during operational flight

in this research, the calculation method of aerodynamic loads on an airplane in all flight situations is presented. in order to find an calculation equation for aerodynamic loads on an airplane in all flight conditions, the f-5 aircraft is selected as a prototype is divided into one hundred small parts longitudinally. therefore, the numerical solutions are taken place in different conditions of...

Flight Loads Analysis of a Maneuvering Transport Aircraft