Photogrammetric Measurement of Recession Rates of Low Temperature Ablators Subjected to High Speed Flow
Language: English
Published by Legare Street Press Nov 2012, 2012
- Softcover
- New
Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
AbeBooks seller since August 14, 2006
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Neuware - This research advances a technique to simulate high temperature/high speed effects in a high speed/low temperature environment and to capture recession of the test article in three-dimensions. A method of fabricating dry ice test articles was developed, and the AFIT Mach 3 pressure-vacuum wind tunnel was used in combination with the dry ice test articles to collect three-dimensional ablation data for models of different shapes at stagnation pressures ranging from approximately 0.4 atm to 3 atm and stagnation temperatures equivalent to room temperature. High speed Schlieren photography was used for visualization, and the three dimensional shape change was quantified with sub-millimeter accuracy using laser dot photogrammetry. Experimental results for multiple shapes were compared to those computed using a computational model called ACFD. The ACFD model employed a finite-volume approach to solving the (3-D) Navier-Stokes equations with the gas assumed to be at equilibrium while employing an implicit solver accounting for the material response. By and large, the computational approach was validated for the conditions tested herein. Measurement of ablation rates at the stagnation point yielded approximate values of convective heat transfer rate when conduction through the solid is assumed negligible. The results of this analysis compared favorably to a variety of extensions of the Fay-Riddell correlation given in the literature. Paths for further research were selected and discussed.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…
Seller Inventory # 9781288332519
- Title
- Photogrammetric Measurement of Recession Rates of Low Temperature Ablators Subjected to High Speed Flow
- Author
- David W. Callaway
- Publisher
- Legare Street Press Nov 2012
- Publication year
- 2012
- Condition
- Neu
- Binding
- Taschenbuch
- Language
- English
- ISBN 10
- 1288332513
- ISBN 13
- 9781288332519
- Item weight
- 414 grams
- Dimensions
- 234x156x15 mm
"Synopsis" may belong to another edition of this title.
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