A Note on Blockage Correction.
Abstract
It has recently been shown that a jump in velocity potential exists between infinite upstream and downstream directions when a body translates uniformly along a channel of finite cross section such as a towing tank or wind tunnel. In this report a new blockage correction formula for body speed is proposed. The speed correction formula due to blockage is obtained by dividing computed potential jump by body length, assuming that the body is slender or flat in the direction of motion. The potential jump is expressed explicitly in terms of the effective volume, i.e., the sum of the displaced volume and added mass/density of the submerged body, and the depth Froude number, if a free surface is present.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1978
- Accession Number
- ADA061290
Entities
People
- Kwang June Bai