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점성 효과에 의한 경사진 방파제 입구에서의 토사 이동에 관한 연구
조일형,공도식,Cho, I. H.,Gong, D. S. 한국항해항만학회 1992 韓國港灣學會誌 Vol.6 No.2
Herein we investigate the mass transport velocity caused by the viscosity near the ocean structure such as circular pile and inclined breakwaters. The mass transport velocity which is represented by the sum of the Eulerian velocity and the stokes drift were derived by Carter, Liu and Mei(1973). The tangential components of the inviscid velocity field at the bottom needed in the calculation of the mass transport velocity is obtained by solving the scattering problem due to breakwaters. The matched asymptotic expansion technique is employed to obtain the inviscid flow fields scattered by inclined breakwaters. The numerical results show that heary sediments tends to be deposited near the center of breakwaters and that the narrowing of the entrance width results in reduction of the magnitude of mass transport.
홍도천(D.C. Hong),이판묵(P.M. Lee),홍석원(S.W. Hong),이종식(J.S. Lee),이종무(C.M. Lee),공도식(D.S. Gong),손영수(Y.S. Son),최학선(H.S. Choi),현범수(B.S. Hyun) 한국해양공학회 1993 韓國海洋工學會誌 Vol.7 No.1
This paper describes the results of 3 years project on the design and development of a 500 meter class ocean survery ROV model. The design concept and the design procedure are given for each component of the ROV. Special emphasis is laid on the development of the position control system together with the development of the performance evaluation technique.