| Patent application number | Description | Published |
|---|
| 20090314076 | HYBRID METHOD FOR ESTIMATING THE GROUND EFFECT ON AN AIRCRAFT - A method for assessing the aerodynamic ground effects on an aircraft. The method includes determining the variation of at least one aerodynamic coefficient of the aircraft as a function of the height for a range of heights extending from an aerodynamically infinite height to a zero height. In the method, (i) the range of heights is subdivided into at least two consecutive sets of heights; (ii) for one of the sets of heights, the variation of said aerodynamic coefficient is determined by wind tunnel tests using a model of the aircraft; and (iii) for the other of the sets of heights, the variation of said aerodynamic coefficient is determined by digital simulation reproducing by computation the physical reality of the air flow around said aircraft. | 12-24-2009 |
| 20100268517 | METHOD AND TOOL FOR SIMULATION OF THE AERODYNAMIC BEHAVIOUR OF AN AIRCRAFT IN FLIGHT CLOSE TO THE GROUND - The invention relates to a method of computer simulation of the aerodynamic behaviour of an aircraft ( | 10-21-2010 |
| 20100280802 | METHOD OF PREDICTING THE AERODYNAMIC BEHAVIOR OF AN AIRCRAFT ELEMENT - The invention relates to a method for predicting the aerodynamic performance of an aircraft element under predetermined conditions, the said aircraft element having at least one break ( | 11-04-2010 |
| 20110046926 | METHOD OF DETERMINING A STIFF VALUE OF AN AERODYNAMIC COEFFICIENT - The invention relates to a method for determination of a rigid value of an aerodynamic coefficient of an aircraft, in which measurements are made in a wind tunnel on a model of the said aircraft and, on the basis of these measurements, at least one value, known as flexible model value, of this aerodynamic coefficient is determined, characterized in that a rigid value of the aerodynamic coefficient is calculated on the basis of the said flexible model value(s) and a correction taking into account the flexibility of the model. A plurality of flexible model values is determined on the basis of measurements made by varying the parameter q/E and maintaining the angle of incidence at a constant value, and the correction consists in an extrapolation operation providing a value of the aerodynamic coefficient corresponding to q/E=0. As a variant, a single flexible model is determined and the correction consists in adjusting the said value with the aid of a correction factor. | 02-24-2011 |
