A NOVEL GRAIN CONFIGURATION FOR DUAL THRUST SOLID ROCKET MOTOR USING TWO PROPELLANTS.
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| Title: | A NOVEL GRAIN CONFIGURATION FOR DUAL THRUST SOLID ROCKET MOTOR USING TWO PROPELLANTS. |
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| Authors: | POPOVIĆ, Milan M.1,2 mpopovicedepro@gmail.com, POPOVIĆ, Milivoje M.1, ELEK, Predrag M.2 |
| Source: | Thermal Science. 2025, Vol. 29 Issue 6B, p4693-4701. 9p. |
| Subjects: | Thrust, Solid propellants, Combustion kinetics, Propellants, Propulsion systems, Thermoplastics |
| Abstract: | This paper presents the design of a propellant grain for a dual-thrust solid rocket motor, combining slotted and end-burner grain geometries with two propellants of different burn rates. This novel approach achieves a high thrust ratio between the two-phases while ensuring nearly neutral burning throughout motor operation. Key performance parameters, such as chamber pressure and thrust, can be predicted analytically, with experimental tests demonstrating excellent agreement with theoretical models. The proposed design offers several advantages: neutral burning in both phases, a highly flexible and high thrust ratio, rapid pressure reduction during phase transition, minimal sliver formation, and quick motor extinction at the end of the second phase. Additionally, the use of thermoplastic propellant technology allows for the integration of multiple propellants within a single grain, providing versatility in using cylindrical-shaped grains for various applications. [ABSTRACT FROM AUTHOR] |
| Copyright of Thermal Science is the property of Society of Thermal Engineers of Serbia 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 | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 191360888 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A NOVEL GRAIN CONFIGURATION FOR DUAL THRUST SOLID ROCKET MOTOR USING TWO PROPELLANTS. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22POPOVIĆ%2C+Milan+M%2E%22">POPOVIĆ, Milan M.</searchLink><relatesTo>1,2</relatesTo><i> mpopovicedepro@gmail.com</i><br /><searchLink fieldCode="AR" term="%22POPOVIĆ%2C+Milivoje+M%2E%22">POPOVIĆ, Milivoje M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22ELEK%2C+Predrag+M%2E%22">ELEK, Predrag M.</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Thermal+Science%22">Thermal Science</searchLink>. 2025, Vol. 29 Issue 6B, p4693-4701. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Thrust%22">Thrust</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+propellants%22">Solid propellants</searchLink><br /><searchLink fieldCode="DE" term="%22Combustion+kinetics%22">Combustion kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Propellants%22">Propellants</searchLink><br /><searchLink fieldCode="DE" term="%22Propulsion+systems%22">Propulsion systems</searchLink><br /><searchLink fieldCode="DE" term="%22Thermoplastics%22">Thermoplastics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper presents the design of a propellant grain for a dual-thrust solid rocket motor, combining slotted and end-burner grain geometries with two propellants of different burn rates. This novel approach achieves a high thrust ratio between the two-phases while ensuring nearly neutral burning throughout motor operation. Key performance parameters, such as chamber pressure and thrust, can be predicted analytically, with experimental tests demonstrating excellent agreement with theoretical models. The proposed design offers several advantages: neutral burning in both phases, a highly flexible and high thrust ratio, rapid pressure reduction during phase transition, minimal sliver formation, and quick motor extinction at the end of the second phase. Additionally, the use of thermoplastic propellant technology allows for the integration of multiple propellants within a single grain, providing versatility in using cylindrical-shaped grains for various applications. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Thermal Science is the property of Society of Thermal Engineers of Serbia 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: 10.2298/TSCI241230087P Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 4693 Subjects: – SubjectFull: Thrust Type: general – SubjectFull: Solid propellants Type: general – SubjectFull: Combustion kinetics Type: general – SubjectFull: Propellants Type: general – SubjectFull: Propulsion systems Type: general – SubjectFull: Thermoplastics Type: general Titles: – TitleFull: A NOVEL GRAIN CONFIGURATION FOR DUAL THRUST SOLID ROCKET MOTOR USING TWO PROPELLANTS. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: POPOVIĆ, Milan M. – PersonEntity: Name: NameFull: POPOVIĆ, Milivoje M. – PersonEntity: Name: NameFull: ELEK, Predrag M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: 2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 03549836 Numbering: – Type: volume Value: 29 – Type: issue Value: 6B Titles: – TitleFull: Thermal Science Type: main |
| ResultId | 1 |
