The Green function for potential flow in a rectangular channel
β Scribed by J. N. Newman
- Publisher
- Springer
- Year
- 1992
- Tongue
- English
- Weight
- 500 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0022-0833
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β¦ Synopsis
The evaluation of the Green function is considered for the three-dimensional Laplace equation, in the interior of a rectangular channel subject to homogeneous Neumann conditions on the boundaries. To complement the Fourier eigenfunction expansion which is effective in the far-field, a near-field algorithm is developed based on the simpler Green function for a channel of infinite width, using images to account for the channel sides. Examples are given of numerical applications including the added mass of a sphere in a square channel, and the interaction force between a ship and an adjacent canal wall.
π SIMILAR VOLUMES
## Abstract Electroosmotic flow in a straight microβchannel of rectangular crossβsection is computed numerically for several situations where the wall zetaβpotential is not constant but has a specified spatial variation. The results of the computation are compared with an earlier published asymptot