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정연규,현성윤,장근식,최성욱 한국유체기계학회 2006 유체기계 연구개발 발표회 논문집 Vol.- No.-
Numerical study has been conducted in two dimensions about a NACA0012 airfoil with an oscillating microflap on the surface. We show that this microflap is effective in controlling the unsteady stall at high angles of attack. We solve the compressible Navier-Stokes equations for the Reynolds numbers with an extensible chimera grid fitted to the oscillatory microflap. For turbulent calculation, we adopt the SST k-ω model. We investigate the parametric effect of angle of attacks, Reynolds number, and the location where the microflap is installed.
Fluent를 이용한 3톤급 액체로켓엔진 매니폴드 내 추진제 유동 균일성 해석
윤동호(Dongho Yun),조현택(Hyeontaek Jo),장현수(Hyeonsoo Jang),현성윤(Seongyoon Hyun),정진택(Jintaeg Jung),홍용기(Yonggi Hong),윤영빈(Yuongbin Yoon) 한국추진공학회 2023 한국추진공학회지 Vol.27 No.4
Flow analysis was performed using Fluent to determine flow uniformity of 3 tonf liquid rocket engine propellant manifold. Based on the manifold initial design, the shape of the fuel distribution plate and propellant pipe inlet was changed to improve flow uniformity, and the flow uniformity of the computational analysis results for these initial and modified designs was compared/analyzed. As a result of the computational analysis, it was confirmed that the flow uniformity of the revised design was improved compared to the initial design.