The aviation engines building industry is the high technology, hi-tech, and dynamically developing industry,which effective work has essential value for social and economic development of the state. For years of the development the aviation engine has turned to a unique product of mechanical engineering, analogues to which on a level of pressure and a thermal state practically is not present. With a goal of achievement of the greatest possible level of technical perfection, reduction of duration and cost of engine development within the frameworks of special programs on advanced technology creation an outstripping working off of new technical decisions is constantly conducted. These achievements are based on basic researches in the different areas of science and technique with wide using of numerical simulation of a high level, physical experiment, and the tests of full-scale units, and engines at the unique test facilities simulating the real conditions of operation. In paper the brief description of the main directions of CIAM's activity and some results of CIAM's works in the area of numerical simulation is resulted.
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