서정화 교수
Jeong-Hwa Seo
서울대학교 · 공학
연구실 소개
서정화 교수의 연구실은 해양구조물의 항력 및 추진성능을 수치유체역학 기반으로 분석하며, 특히 선체 형상 최적화와 추진기 성능 향상을 위한 CFD 기반 시뮬레이션 기법을 핵심으로 연구하고 있습니다. 고속 단일체선의 운동성능과 항해 중 수면파에 대한 거동을 모델링하고, 스프레이 레일 등의 수동적 조작 장치를 통해 선체의 침내각 감소 및 항력 저감을 도모하는 연구도 진행 중입니다. 또한, 선박의 수중 유동 해석을 위한 고정밀 메쉬 생성 기법과 동적 경계 조건 처리 기술에 초점을 맞추고 있습니다.
연구 현황
연구 성과 추이
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
주요 논문
15In the present study, we conducted resistance test, propeller open water test and self-propulsion test for a ship's resistance and propulsion performance, using computational fluid dynamics techniques, where a Reynolds-averaged Navier-Stokes equations solver was employed. For convenience of mesh generation, unstructured meshes were used in the bow and stern region of a ship, where the hull shape is formed of delicate curved surfaces. On the other hand, structured meshes were generated for the mi
The resistance and seakeeping performance of a high-speed monohtill vessel were investigated through a series of model tests in a towing tank. The hull had a slender wave-piercing bow, round bilge, and small deadrise angle on stem. Tests on the bare hull in calm water were first conducted and tests on spray rails followed. The spray rails were dbsigned to control the flow direction and induce a hydrodynamic lift force on the hull bottom to reduce trim angle and increase rise of the hull. The max
In the present study, we conducted resistance test, propeller open water test and self-propulsion test for a ship’s resistance and propulsion performance, using computational fluid dynamics techniques, where a Reynolds-averaged Navier-Stokes equations solver was employed. For convenience of mesh generation, unstructured meshes were used in the bow and stern region of a ship, where the hull shape is formed of delicate curved surfaces. On the other hand, structured meshes were generated for the mi
CRD42019131620.
ClinicalTrials.gov Identifier: NCT01371773.
The early administration of rocuronium before checking mask ventilation resulted in a larger mask VT and earlier tracheal intubation than the late administration of rocuronium after checking mask ventilation in patients with normal airways.
The resistance and seakeeping performance of a high-speed monohull vessel were investigated through a series of model tests in a towing tank. The hull had a slender wave-piercing bow, round bilge, and small deadrise angle on stern. Tests on the bare hull in calm water were first conducted and tests on spray rails followed. The spray rails were designed to control the flow direction and induce a hydrodynamic lift force on the hull bottom to reduce trim angle and increase rise of the hull. The max
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