Investigation On The Characteristics Of Integral Inlet Particle Separator

In military applications，aircraft must sometimes operate in dusty environments, As a result，engines can ingest significant amount of solid particulate，such as sand. This particulate is typicallyerosive and can rapidly wear compressor blades. In addition，cooling passage can also becomeblocked. Such conditions can result in limited life of these aircraft engines. Engine replacement iscostly and causes downtime for aircraft. Also, the engine performance in terms of horsepower candegrade over time and fuel consumption can increase。The main purpose of this paper is to study the case in high-speed flow-type particle separator of theoverall flow characteristics, analyze the impact and the factors affecting the law of integral inletparticle separator. On the based of calculation results, explore the integral inlet particle separatordesign optimization method, the integral inlet particle separator structure to optimize the parametersfor the integral particle separator designed to provide a reference.For the study of integral inlet particle separator flow and separation characteristics, the firstdesign an integral particle separator model, and then start numerical simulation on the designed model,variables were calculated aerodynamic parameters, structural parameters of the variable parametersand variables on the overall particle type particle separator performance, results show that:Aerodynamic and structural parameters have a great impact total pressure loss and separationefficiency. The diameter, angle and speed of particle have large impact on the separation efficiencywhile the density and concentration have less impact. In the part of integral particle separatoroptimized, according to numerical simulation results, the integral particle separator wall for aparametric surface modeling. Parameters used for the wall surface VC, UG/OPEN API function toencapsulate them, and use integrated multidisciplinary optimization software iSIGHT for the integralparticle separator wall surface optimization. After optimization, the overall particle separator decrease0.1%on the total pressure loss, improved2%on separation efficiency. In the part of the particlesparticle rebound characteristics with the wall was analyzed, and designed the test system of theparticles rebound.