CALCULATION OF THE PRIMARY TRAJECTORIES OF DUST SEEDS, SPORES AND POLLEN IN UNSTEADY WINDS.
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| Title: | CALCULATION OF THE PRIMARY TRAJECTORIES OF DUST SEEDS, SPORES AND POLLEN IN UNSTEADY WINDS. |
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| Authors: | Burrows, F. M.1 |
| Source: | New Phytologist. Sep75, Vol. 75 Issue 2, p389-403. 15p. |
| Subjects: | Seeds, Plant spores, Pollen, Sedimentation & deposition, Gravitational fields, Equations of motion, Winds |
| Abstract: | The movement of dust seeds, spores and pollen released into winds which fluctuate in both speed and direction is considered in terms of the aerial mechanics of a small spherical particle moving under the Stokes' law of resistance and in a gravitational field. Equations of motion are established from which the aerial paths followed may be determined whenever it is possible to specify the movement of the environment accurately and in sufficiently fine detail. Example calculations show how deposition may arise on account of wind fluctuations, in addition to the normal process of gravitational sedimentation, and how very complicated trajectory geometry can result in quite simple flows which vary in both time and in space and time. It is also shown that very different positions of ultimate migration may be occupied at a particular time by particles released from positions quite close to one another in space and into unsteady winds. [ABSTRACT FROM AUTHOR] |
| Copyright of New Phytologist is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 12119275 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: CALCULATION OF THE PRIMARY TRAJECTORIES OF DUST SEEDS, SPORES AND POLLEN IN UNSTEADY WINDS. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Burrows%2C+F%2E+M%2E%22">Burrows, F. M.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22New+Phytologist%22">New Phytologist</searchLink>. Sep75, Vol. 75 Issue 2, p389-403. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Seeds%22">Seeds</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+spores%22">Plant spores</searchLink><br /><searchLink fieldCode="DE" term="%22Pollen%22">Pollen</searchLink><br /><searchLink fieldCode="DE" term="%22Sedimentation+%26+deposition%22">Sedimentation & deposition</searchLink><br /><searchLink fieldCode="DE" term="%22Gravitational+fields%22">Gravitational fields</searchLink><br /><searchLink fieldCode="DE" term="%22Equations+of+motion%22">Equations of motion</searchLink><br /><searchLink fieldCode="DE" term="%22Winds%22">Winds</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The movement of dust seeds, spores and pollen released into winds which fluctuate in both speed and direction is considered in terms of the aerial mechanics of a small spherical particle moving under the Stokes' law of resistance and in a gravitational field. Equations of motion are established from which the aerial paths followed may be determined whenever it is possible to specify the movement of the environment accurately and in sufficiently fine detail. Example calculations show how deposition may arise on account of wind fluctuations, in addition to the normal process of gravitational sedimentation, and how very complicated trajectory geometry can result in quite simple flows which vary in both time and in space and time. It is also shown that very different positions of ultimate migration may be occupied at a particular time by particles released from positions quite close to one another in space and into unsteady winds. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of New Phytologist is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/j.1469-8137.1975.tb01403.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 389 Subjects: – SubjectFull: Seeds Type: general – SubjectFull: Plant spores Type: general – SubjectFull: Pollen Type: general – SubjectFull: Sedimentation & deposition Type: general – SubjectFull: Gravitational fields Type: general – SubjectFull: Equations of motion Type: general – SubjectFull: Winds Type: general Titles: – TitleFull: CALCULATION OF THE PRIMARY TRAJECTORIES OF DUST SEEDS, SPORES AND POLLEN IN UNSTEADY WINDS. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Burrows, F. M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep75 Type: published Y: 1975 Identifiers: – Type: issn-print Value: 0028646X Numbering: – Type: volume Value: 75 – Type: issue Value: 2 Titles: – TitleFull: New Phytologist Type: main |
| ResultId | 1 |
