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      KCI등재 SCIE SCOPUS

      Development of a 2-D flow solver on unstructured and adaptive Cartesian meshes

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      https://www.riss.kr/link?id=A103789901

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      다국어 초록 (Multilingual Abstract)

      A two-dimensional flow solver using mixed grids has been developed for accurate and efficient simulation of steady and unsteady flow fields. The flow solver was cast to accommodate two different topologies of computational meshes: unstructured triangular meshes in the near-body region such that complex geometric configurations can be easily modeled, while unstructured adaptive Cartesian meshes are utilized in the off-body region to resolve the flow more accurately with less numerical dissipation by adopting a spatially high-order accurate scheme and solution-adaptive mesh refinement technique. The unstructured adaptive Cartesian meshes can be generated automatically and allow to handle data efficiently via quad-tree data structures. A chimera mesh approach has been employed to link the two flow regimes adopting each mesh topology. A second-order accurate vertex-centered scheme and a 3rd- or 5th- order accurate cellcentered WENO scheme has been utilized in the near-body region and in the off-body region, respectively. Validations were made for the unsteady inviscid vortex convection and the steady and unsteady turbulent flows over an NACA0012 airfoil, and the results were compared with other computational and experimental results.
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      A two-dimensional flow solver using mixed grids has been developed for accurate and efficient simulation of steady and unsteady flow fields. The flow solver was cast to accommodate two different topologies of computational meshes: unstructured triangu...

      A two-dimensional flow solver using mixed grids has been developed for accurate and efficient simulation of steady and unsteady flow fields. The flow solver was cast to accommodate two different topologies of computational meshes: unstructured triangular meshes in the near-body region such that complex geometric configurations can be easily modeled, while unstructured adaptive Cartesian meshes are utilized in the off-body region to resolve the flow more accurately with less numerical dissipation by adopting a spatially high-order accurate scheme and solution-adaptive mesh refinement technique. The unstructured adaptive Cartesian meshes can be generated automatically and allow to handle data efficiently via quad-tree data structures. A chimera mesh approach has been employed to link the two flow regimes adopting each mesh topology. A second-order accurate vertex-centered scheme and a 3rd- or 5th- order accurate cellcentered WENO scheme has been utilized in the near-body region and in the off-body region, respectively. Validations were made for the unsteady inviscid vortex convection and the steady and unsteady turbulent flows over an NACA0012 airfoil, and the results were compared with other computational and experimental results.

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      참고문헌 (Reference)

      1 X. Liu, "Weighted Essentially Nonoscillatory Schemes" 115 (115): 200-212, 1994

      2 D. Mavriplis, "Unstructured Mesh Discretizations and Solvers for Computational Aerodynamics" 46 (46): 1281-1298, 2008

      3 J. Sitaraman, "Parallel Unsteady Overset Mesh Methodology for a Multi-Solver Paradigm with Adaptive Cartesian Grids" 2008

      4 H. Saberi, "Overview of RCAS and Application to Advanced Rotorcraft Problems" 2004

      5 S. Jang, "Multidimensional Interpolation for High Order Schemes in Adaptive Grids" 11 (11): 39-47, 2006

      6 H. Yee, "Low-Dissipative High-Order Shock-Capturing Methods Using Characteristic- Based Filters" 150 : 199-238, 1999

      7 S. Kamkar, "Feature- driven Cartesian Adaptive Mesh Refinement for Vortex- dominated Flows" 230 (230): 6271-6298, 2011

      8 J. Sitaraman, "Evaluation of a Multi-Solver Paradigm for CFD using Overset Unstructured and Structured Adaptive Cartesian Grids" 660-679, 2008

      9 T. Pulliam, "Euler and Thin-Layer Navier-Stokes Codes: ARC2D, and ARC3D" 1984

      10 M. de Berg, "Computational Geometry: Algorithms and Applications, 3rd ed" Springer 2007

      1 X. Liu, "Weighted Essentially Nonoscillatory Schemes" 115 (115): 200-212, 1994

      2 D. Mavriplis, "Unstructured Mesh Discretizations and Solvers for Computational Aerodynamics" 46 (46): 1281-1298, 2008

      3 J. Sitaraman, "Parallel Unsteady Overset Mesh Methodology for a Multi-Solver Paradigm with Adaptive Cartesian Grids" 2008

      4 H. Saberi, "Overview of RCAS and Application to Advanced Rotorcraft Problems" 2004

      5 S. Jang, "Multidimensional Interpolation for High Order Schemes in Adaptive Grids" 11 (11): 39-47, 2006

      6 H. Yee, "Low-Dissipative High-Order Shock-Capturing Methods Using Characteristic- Based Filters" 150 : 199-238, 1999

      7 S. Kamkar, "Feature- driven Cartesian Adaptive Mesh Refinement for Vortex- dominated Flows" 230 (230): 6271-6298, 2011

      8 J. Sitaraman, "Evaluation of a Multi-Solver Paradigm for CFD using Overset Unstructured and Structured Adaptive Cartesian Grids" 660-679, 2008

      9 T. Pulliam, "Euler and Thin-Layer Navier-Stokes Codes: ARC2D, and ARC3D" 1984

      10 M. de Berg, "Computational Geometry: Algorithms and Applications, 3rd ed" Springer 2007

      11 M. Jung, "Assessment of Rotor Hover Performance Using a Node-Based Flow Solver" 8 (8): 44-53, 2007

      12 S. Venkateswaran, "Application of the Helios Computational Platform to Rotorcraft Flowfields" 1230-1257, 2010

      13 D. de Zeeuw, "A Quadtree-Based Adaptively-Refined Cartesian- Grid Algorithm for Solution of the Euler Equations" University of Michigan 1993

      14 A. Wissink, "A Python-Based Infrastructured for Overset CFD with Adaptive Cartesian Grids" 927-944, 2008

      15 A. Katz, "A Multi-solver Schemes for Viscous Flows Using Adaptive Cartesian Grids and Meshless Grid Communication" 768-780, 2009

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      유사연구자 (20) 활용도상위20명

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      학술지 이력

      학술지 이력
      연월일 이력구분 이력상세 등재구분
      2023 평가예정 해외DB학술지평가 신청대상 (해외등재 학술지 평가)
      2020-01-01 평가 등재학술지 유지 (해외등재 학술지 평가) KCI등재
      2012-11-05 학술지명변경 한글명 : 대한기계학회 영문 논문집 -> Journal of Mechanical Science and Technology KCI등재
      2010-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2008-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2006-01-19 학술지명변경 한글명 : KSME International Journal -> 대한기계학회 영문 논문집
      외국어명 : KSME International Journal -> Journal of Mechanical Science and Technology
      KCI등재
      2006-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2004-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2001-01-01 평가 등재학술지 선정 (등재후보2차) KCI등재
      1998-07-01 평가 등재후보학술지 선정 (신규평가) KCI등재후보
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      학술지 인용정보

      학술지 인용정보
      기준연도 WOS-KCI 통합IF(2년) KCIF(2년) KCIF(3년)
      2016 1.04 0.51 0.84
      KCIF(4년) KCIF(5년) 중심성지수(3년) 즉시성지수
      0.74 0.66 0.369 0.12
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