File:A COMSOL SIMULATION OF MICROSPHERE-BASED PASSIVE MATERIAL FOR LOW TEMPERATURE DIVING SUITS (IA acomsolsimulatio1094560445).pdf
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A COMSOL SIMULATION OF MICROSPHERE-BASED PASSIVE MATERIAL FOR LOW TEMPERATURE DIVING SUITS
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| Author |
Oldenkamp, John A. |
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| Title |
A COMSOL SIMULATION OF MICROSPHERE-BASED PASSIVE MATERIAL FOR LOW TEMPERATURE DIVING SUITS |
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| Publisher |
Monterey, CA; Naval Postgraduate School |
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| Description |
The United States Navy conducts diving operations in various places and climates all over the world. The neoprene wet suit protects the diver from cold water temperatures, extending the duration the diver can stay in the water. Neoprene is a soft material made of air-foamed rubber that uses small, flexible air pockets to thermally insulate a diver from the cold. However, as the diver descends, increased ambient pressure compresses the neoprene, decreasing its thickness and shrinking its air pockets. As a result, the suit’s insulation capability significantly degrades with depth, adversely affecting diver operations and persistence time at depth. One potential solution is the use of rigid glass microspheres as the thermally insulating material, which should be impervious to pressure changes associated with diving depth. This thesis develops a model using COMSOL Multiphysics software that can be used to theoretically verify previous work and provide the framework for computer simulations to predict the thermal resistivity of various materials as a function of microsphere composition, steric distribution, and volumetric fraction within the carrier polymer. Subjects: diver; insulation; thermal; composite; material; microspheres; silicone; protection; divesuit; diving; safety; hypothermia |
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| Language | English | |
| Publication date | September 2018 | |
| Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
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| Accession number |
acomsolsimulatio1094560445 |
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| Source | ||
| Permission (Reusing this file) |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. | |
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
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| current | 22:05, 13 July 2020 |  | 1,275 × 1,650, 72 pages (1.26 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection acomsolsimulatio1094560445 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #5277) |
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