Mild Slope Equation of Elliptic Type in Wave-Current Interaction

흐름의 영향을 고려한 구도형 완경사 방정식

The mild slope equation has been directly derived from the energy equation, and the relation between energy equation and Green's first and second identities was also clarified. It is shown here that the mild slope equation of elliptic type in the wave-current interaction has to have the same form as the one derived by Berkhoff (1972), and its physical meaning was investigated through analytical solutions.

완경사 방정식을 에너지 보존식으로부터 직접 유도하였으며 에너지 보존식과 Green's first and second identities와의 관계를 분명히 밝혔다. 파랑-흐름 상호작용 시의 타원형 완경사 방정식이 Berkhoff (1972)에 의해서 유도된 흐름이 없는 경우와 같은 형태를 갖는다는 것이 제시되었으며, 또한 해석적인 해를 통해 물리적 특성이 조사되었다.