상용 CFD 프로그램을 사용한 베인형 관성분리기의 설계인자 영향 검토

이답연; 류재문

doi:10.3744/SNAK.2017.54.6.470

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저널정보

대한조선학회
대한조선학회 논문집 학술저널
대한조선학회논문집 제54권 제6호(통권 제216호)
2017.12 470 - 475 (6page)
DOI : 10.3744/SNAK.2017.54.6.470

저자정보

이답연 (충남대학교)
류재문 (충남대학교)

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초록·키워드

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Since the intake air of gas turbine engine of marine purpose contains water particles, inertial separator for separating the air and water particles are provided. Saw type and wave type separator are now used to separate inflow water particle from the gas. In this paper, the design parameters of saw type separator are studied by numerical simulations. Using the commercial CFD program, Star-CCM+, Lagrangian-Eulerian method was used to perform the analysis of two phase flow of the mist in the air. This method solves Reynolds-Averaged Navier-Stokes equations in Eulerian framework for the continuous phase, while solves equation of motion for individual particles in Lagrangian framework. Lagrangian multiphase method was applied to monitor the particles of different sizes and shapes and to verify collision between particles by chasing particles. Water particles were injected through injectors located at the inlet of the separator and escape mode was used which assumes that the particles attached on the surface of inertial separator were removed from the simulation, effectively escaping the solution domain. Through the numerical computations with the inlet condition of constant water particle size in the wetness fraction of 85%, efficiency of eliminating the water particle and the pressure drop between the inlet and outlet were examined.

#Inertial separator(관성분리기) #Saw type(톱날형) #Escape mode(에스케이프 모드) #Lagrangian multiphase method(라그랑지 다상법)