Abstract
Abstract. The study of how aircraft icing influences on aircraft aerodynamic performance is very important for developing measures and recommendation to improve aircraft flight safety. The effective method of aerodynamic processes modeling is experiment in wind (aerodynamic) tunnel or water (hydrodynamic) tunnel. They allow to perform experiments with a scaled model of an aircraft affected by icing and to visualize the wing flow process and changes caused by icing. While visualization of the wing flow yields useful qualitative information about flow, it is more important to retrieve quantitative 3D data of flow, which allows to forecast icing process and to develop anti-icing techniques and recommendations.The presented study addresses to creating an photogrammetric system and 3D measurement techniques for quantitate evaluation of 3D flow parameters in a hydrodynamic tunnel for aircraft icing influence exploration. Being an initial part of a long-term research project, this study is aimed at developing of an accurate calibration technique of the photogrammetric system for 3D measurement in condition of two optical media interfaces. The developed algorithms for imaging process through two optical media interfaces are used in calibration procedure and object 3D coordinates measuring. The results of the photogrammetric system calibration are given in comparison with standard (single media) case. Experimental 3D reconstruction of a typical object demonstrated high accuracy of the developed algorithms.
Highlights
The adequate modeling and forecasting of aircraft icing is extremely important for flight safety (Cao et al, 2018), so this process should be studied at the very early stages of an aircraft design
An understanding of ice accretion influence on aircraft aerodynamic characteristics is necessary for develop anti-icing measures
The photogrammetric 3D measurement system includes two Basler acA1280-60gm GigE cameras with the e2v EV76C560 CMOS sensor and NEC multi media projector mounted on a rigid platform, providing stable exterior orientation
Summary
The adequate modeling and forecasting of aircraft icing is extremely important for flight safety (Cao et al, 2018), so this process should be studied at the very early stages of an aircraft design. The importance of aircraft icing problem is reflected in a set of international and national standards, according to which the most critical forms of ice accretion, affecting the characteristics and flight qualities of an aircraft, must be determined for each phase of the flight of the aircraft. The results of such special studies can be used to obtain detailed information for choosing the protective equipment and for determining the critical ice formations. It is very important to accurately predict the aerodynamic behavior of an aircraft, basing on adequate model of the icing process
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
