overview of the nasa advanced composite

An overview of the NASA Advanced Composite Solar Sail System (ACS3) technology demonstration project is presented. Descriptions of the ACS3 solar sail design, spacecraft systems, concept of operations, and ground testing are provided, along with a discussion of the extensibility of the ACS3 composite solar sail system technology to future...

Erosional equivalences of levees: Steady and intermittent wave overtopping

Beach Nourishment: Design Principles

Design principles for beach nourishment in the form of cross-shore response, planform evolution of beach nourishment projects and damage reduction

Defense of Shorelines by Structural Approaches

Structural approaches can be employed to stabilize shorelines against erosion, to provide sheltered areas for swimming or for a myriad of other benefits. In this section, the emphasis will be on shoreline stabilization although much of the information and discussions presented would be equally applicable to accomplish other objectives. Three...

Beach Response to Sea Level Change, The Sea Part 2

Methodology for evaluating suitability of wave and wave force data for determining drag and inertia coefficients

Evaluation and development of water wave theories for engineering application, vol 2: Tabulation of dimensionless stream function theory variables

Table for wave computations.

Evaluation and development of water wave theories for engineering application, vol 1: Presentation of research results

Volume I of this report presents the results of a research program to evaluate and develop water wave theories for engineering application. A second volume of this report presents wave tables developed for preliminary design in offshore problems. Volume I describes: (1) an evaluation of the degree to which various available wave theories satisfy...

RESIDENCE TIMES OF WATERS BEHIND BARRIER ISLANDS

This study pertains to lagoons connected to the ocean by narrow, constricted inlets. The purpose of the study is to evaluate the convective or non-dispersive transport in these lagoon systems. Equations describing the flow in the lagoon and in the inlets are derived. Because the convective transport results from the higher order (non-linear)...

Recent results obtained from a numerical wave theory for highly nonlinear shallow water waves

Analytical representation of shallow water wave phenomena is complicated due, in part, to the fact that nonlinear features are important in a predominant number, if not all , problems of shallow water wave motion. It therefore may not even be approximately valid to utilize the Airy wave theory and to assume that various wave components behave...

Relative validities of water wave theories

Stream function wave theory: Validity and application

The engineer required to calculate theoretical wave characteristics such as wave profiles and wave forces and moments on piling, is confronted with a problem which includes (1) selecting one of a number of available theories and (2) calculating the required information which, for some of the theories, is a relatively complicated procedure. This...