Method of calculating dynamic pressure at the level of an aircraft surface

摘要

The invention is aimed at a method simulating the aerodynamic flow around an aircraft, so as to detect the aerodynamic loads exerted on a predetermined surface of the aircraft. The method includes a phase of determining a value denoted QA of global dynamic pressure at the level of the predetermined surface of the aircraft. The method includes steps of carrying out simulations of aerodynamic flow around the predetermined surface of the aircraft for given environmental conditions, on the basis of a mesh produced around the shape of the aircraft, determining a local dynamic pressure qA around the predetermined surface of the aircraft, and then calculating the global dynamic pressure QA.

主权项

1. A method for simulating aerodynamic flow around an aircraft, so as to determine aerodynamic loads exerted on said aircraft, the loads being dependent on trim of a given structural element of the aircraft, the method determining an aerodynamic model of the aircraft for a plurality of aerodynamic flow scenarios, the method comprising determining the aerodynamic model by determining global dynamic pressure QA exerted around the structural element by a process including the following steps:
(a) employing a mesh produced around the overall shape of the aircraft, (b) simulating the aerodynamic flow around the aircraft by employing said mesh, (c) determining local dynamic pressure qA around the surface of said structural element, and (d) calculating the global dynamic pressure QA around the surface of the structural element, in the presence of the aeroplane without said structural element, on the basis of the local dynamic pressure qA, wherein the global dynamic pressure QA enables determination of an aerodynamic pressure force F exerted on the overall surface of the structural element. (e) generating the aerodynamic model in accordance with steps (a)-(d).