Sound Propagation According to Kinetic Models

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Excerpt from Sound Propagation According to Kinetic Models: Aec Research and Development Report, August 15, 1961In spite of the approximate nature of the model equations, actual results from the dispersion relation are difficult to obtain except for small wave numbers However, the disper sion relation does appear in closed form. Although the dispersion relations are amenable to numerical calculation, only a few calculations were made. A report now in progress will contain an extensive numerical study of the dispersion relations. The few calculations do show the possibility of a maximum phase speed it is implied by the single relaxation model. This will not be explored but must await the future numerical work.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.