ISSN 2288-2103 (Print)
ISSN 2288-2111 (Online)
 
 
 
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The Journal of the Korean Society for Composite Materials. 2019 32(1): 56-64
ⓒ The Journal of the Korean Society for Composite Materials
    
 
Numerical Simulation of Diffusion and Flow in Fabrication of Carbon/Carbon Composite Using Chemical Vapor Infiltration
Hye-gyu Kim, Wooseok Ji, Namchun Jo, Jonggyu Park
Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea,Agency for Defense Development, Yuseong-gu, Daejeon, Korea
 
 
 
다단계 화학반응과 밀도화 모델을 이용한 탄소/탄소 복합재 화학기상침투 공정의 확산 및 유동 수치해석
김혜규, 지우석, 조남춘, 박종규
Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea,Agency for Defense Development, Yuseong-gu, Daejeon, Korea
 

In this paper, a model is developed to simulate carbon/carbon composite fabrication using chemical vapor infiltration, considering density and porosity change in the preform and multi-step hydrocarbons reactions. The model considers the preform as a porous medium whose diffusion and flow properties changes due to the porosity. To verify the theoretical model, two numerical analyses were performed for the case that the flow inside the preform is zero and the case that the flow inside the preform is calculated by fluid mechanics. The numerical results showed good agreement with the experimental data.
 
Key words : Carbon/carbon composites, Chemical vapor infiltration, Numerical analysis
중심단어 : 탄소/탄소 복합재, 화학기상침투법, 수치해석
 
Address for reprints : Wooseok Ji, Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea
Tel : ,    Fax : ,    E-mail : wsji@unist.ac.kr
 
 
 
 
  
 
 
 

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