The Force and Moment on a Submerged Axisymmetric Body Moving near a Sinusoidal Wall. Course 13A.
Abstract
The hydrodynamic force and yaw moment acting on a slender axisymmetric body are found for the case in which the body is moving along its axis with constant forward velocity parallel to a vertical wall. The fluid is assumed to be inviscid and incompressible. This thesis considers first the situation of a body near a flat wall using the method of images. The body and its image are modeled using a continuous line distribution of sources and doublets; the dipole distribution is used to account for velocities induced on each body by its image. Next, the case of a body running parallel to the mean position of a wall varying sinusoidally in the longitudinal direction is analyzed. The interaction between the sinusoidal wall and body is modeled using a 'large' axisymmetric body in proximity of a smaller body. The transverse force and moment on a body near each type of wall are determined using two different methods: Lagally's theorem and 'segmented' theory. Lagally's theorem is used to find the axial force on a body near a sinusoidal wall. Computer programs and calculated results are presented for an unappended modern submarine hull form in the vicinity of both types of walls.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1985
- Accession Number
- ADA158966
Entities
People
- J. T. Arcano Jr
Organizations
- Massachusetts Institute of Technology