USA as Represented by Secretary of the Navy

Craig A Wagner

Rolf G Kasper

Anthony J Kalinowski

Jayant S Patel

A method of predicting steady, incompressible fluid flow over a given geory is provided. The given geometry is modeled with a plurality of overlapping blocks. Pseudocompressibility equations are solved in an iterative process according to a finite differencing method. The solutions at each overlapped portion are used to update solutions of adjoining blocks. By linking the blocks through overlapping, the solution converges at a faster rate than if each block were solved for independently.

Method of predicting steady incompressible fluid flow

A buoyant antenna for providing sufficient transmission time windows for munication at ultra-high and extremely-high frequencies. The antenna is configured to float on the surface of a body of water and is connected to a vessel through a communications cable. The buoyant antenna has a length and a stabile or rotation resistant cross-section which minimizes wash over when deployed in a manner which essentially eliminates in line tension on the antenna. The antenna is cylindrically shaped with sensor elements offset from the centerline. A high density mass is placed diametrically opposite the sensor elements and a high buoyancy foam fills out the remaining cylindrical shape. The high density mass creates a righting moment to maintain the sensor elements above the water line. The absence of in line tension during communication periods serves also to eliminate any detectable wake during those communication periods. The lack of detectability makes the antenna and its deployment method particularly well suited for use when the vessel is a submarine.

Growing community of inventors

Norwich, CT, United States of America

Craig A Wagner