Flow determination method

摘要

The invention relates to a method for determining a flow, wherein flow velocities ΔV−LoS in measuring direction mr are measured by means of sensors 2 using at least one measuring position, comprising the following steps:
a) Initializing parameters of a flow model representing the flow,b) Calculating simulated flow velocities in the measuring direction at least at one measuring position according to the flow model representing the flow,c) Comparing the measured flow velocities to the simulated flow velocities and adjusting the parameters of the flow model that influences the flow by minimizing a quality function that depends on the comparison result, andd) Repeating of steps b) and c) and determining the flow in dependency of the approximated flow model.

主权项

1. A method for determining a flow in a vicinity of a first aircraft comprising the following steps:
measuring one or more flow velocities by one or more sensors on the first aircraft using at least one measuring position of the one or more sensors, each of the one more measured flow velocities being in one measuring direction of the one or more sensors; initializing parameters of a flow model representing a flow, wherein the flow is a wake turbulence of a second aircraft and the flow model is an analytical vortex model; calculating, with an arithmetic unit connected with the one or more sensors, one or more simulated flow velocities at the at least one measuring position according to the flow model representing the flow; comparing with the arithmetic unit the one or more measured flow velocities obtained from said measuring step to the one or more simulated flow velocities obtained from said calculating step; adjusting the parameters of the flow model representing the flow by minimizing a quality function that depends on at least one comparison result of said comparing step to obtain an approximated flow model; repeating said steps of calculating, comparing, and adjusting for one or more iterations; and then determining the flow of the second aircraft in dependency of the approximated flow model.