A physiological model of gas pockets in crevices and their behavior under compression.
The formation of bubbles in the body from dissolved gases during decompression causes a range of symptoms, often referred to as Decompression Sickness. It is likely that these bubbles grow from pre-existing nuclei. It has been proposed that such nuclei are pockets of gas that are stabilized against...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2006
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| _version_ | 1797089894132088832 |
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| author | Chappell, M Payne, S |
| author_facet | Chappell, M Payne, S |
| author_sort | Chappell, M |
| collection | OXFORD |
| description | The formation of bubbles in the body from dissolved gases during decompression causes a range of symptoms, often referred to as Decompression Sickness. It is likely that these bubbles grow from pre-existing nuclei. It has been proposed that such nuclei are pockets of gas that are stabilized against collapse under raised pressure, such as that experienced by deep-sea divers. This work explores the stabilization of gas pockets in crevices, in its application to the nucleation of bubbles in blood vessels. A model has been derived to describe the dynamics of a bubble in a crevice, assuming that gases diffuse in and out of the bubble via the crevice wall from the body tissues surrounding the crevice. The time-varying behavior of the bubble has been examined and it has been shown that a crevice bubble can survive compression by temporary variations in the gas-liquid interface curvature or by shrinking, its behavior being found to be strongly dependent upon the model parameters. |
| first_indexed | 2024-03-07T03:10:35Z |
| format | Journal article |
| id | oxford-uuid:b40f2100-1f7d-4018-8288-89cfe8de7219 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:10:35Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:b40f2100-1f7d-4018-8288-89cfe8de72192022-03-27T04:23:24ZA physiological model of gas pockets in crevices and their behavior under compression.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b40f2100-1f7d-4018-8288-89cfe8de7219EnglishSymplectic Elements at Oxford2006Chappell, MPayne, SThe formation of bubbles in the body from dissolved gases during decompression causes a range of symptoms, often referred to as Decompression Sickness. It is likely that these bubbles grow from pre-existing nuclei. It has been proposed that such nuclei are pockets of gas that are stabilized against collapse under raised pressure, such as that experienced by deep-sea divers. This work explores the stabilization of gas pockets in crevices, in its application to the nucleation of bubbles in blood vessels. A model has been derived to describe the dynamics of a bubble in a crevice, assuming that gases diffuse in and out of the bubble via the crevice wall from the body tissues surrounding the crevice. The time-varying behavior of the bubble has been examined and it has been shown that a crevice bubble can survive compression by temporary variations in the gas-liquid interface curvature or by shrinking, its behavior being found to be strongly dependent upon the model parameters. |
| spellingShingle | Chappell, M Payne, S A physiological model of gas pockets in crevices and their behavior under compression. |
| title | A physiological model of gas pockets in crevices and their behavior under compression. |
| title_full | A physiological model of gas pockets in crevices and their behavior under compression. |
| title_fullStr | A physiological model of gas pockets in crevices and their behavior under compression. |
| title_full_unstemmed | A physiological model of gas pockets in crevices and their behavior under compression. |
| title_short | A physiological model of gas pockets in crevices and their behavior under compression. |
| title_sort | physiological model of gas pockets in crevices and their behavior under compression |
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