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Numerical Simulation Research of Water Droplet Impingement Performace of Engine Inlet

Author: GuHaiJun
Tutor: ZhangDaLin
School: Nanjing University of Aeronautics and Astronautics
Course: Machine and Environmental Engineering
Keywords: The anti (except ) the ice Water Droplet Impingement Numerical Simulation Zoning Calculation Block structured grid
CLC: V231
Type: Master's thesis
Year: 2005
Downloads: 230
Quote: 4
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Abstract


The aircraft anti-icing aircraft environmental control system is an important research direction , flight , especially in adverse weather conditions necessary for the protection of the safety of the flight . Numerical study abroad in aircraft anti-icing system is relatively mature domestic only just started . In this paper, the anti - ice surface in the numerical simulation of aircraft anti- icing system air flow field and water droplets impingement numerical calculation study . Application block structured grid method of calculation of the partition , a certain type of engine inlet air flow field and water droplets impingement , the numerical simulation of different flight status , typical icing weather conditions . This paper first introduces the basic idea of partition calculated on this block structured grid SIMPLER algorithm implementation methods , and single- block area to solve using the mesh generation technology , convection discrete format , turbulence model , as well as the droplets impact trajectory calculation Euler method, discusses the practical problems the partition interface data transfer and correction method . Programming 2D lid-driven flow and semi- cylindrical flow around two examples , with the benchmark solution or test data to verify the reliability . Then calculate 0 m , 1000 m , 4000 m , 8000 m flight state , an engine inlet lip at the air flow field and the corresponding water droplets impingement , given the results and analysis .

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CLC: > Aviation, aerospace > Aviation > Aero-engine ( propulsion system ) > Engine theory
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