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Separation Analysis of Strap-ons in the Multi-stage Launch Vehicle Using the Grid Computing Technique
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ko, Soon-Heum | - |
dc.contributor.author | Kim, Chongam | - |
dc.contributor.author | Kim, Kyu Hong | - |
dc.contributor.author | Cho, Kum Won | - |
dc.date.accessioned | 2009-08-07T02:35:17Z | - |
dc.date.available | 2009-08-07T02:35:17Z | - |
dc.date.issued | 2006-01-10 | - |
dc.identifier.citation | AIAA 44th Aerospace Sciences Meeting and Exhibit, AIAA 2006-277, Reno, 2006 | en |
dc.identifier.uri | https://hdl.handle.net/10371/6457 | - |
dc.description.abstract | A numerical technique for simulating the separation dynamics of strap-on boosters is presented. Six degree of freedom rigid body equations of motion are integrated into the three-dimensional unsteady Navier-Stokes solution procedure to determine the dynamic motions of strap-ons. An automated Chimera overset mesh technique is introduced to achieve maximum efficiency for the relative motion of multiple bodies and each mesh is constructed as multi-block mesh for the representation of the after-body flow. Additionally, a new computing concept, called the Grid computing technique[1,2], is adopted to guarantee sufficient computing resources and a simple load balancing technique is proposed for an efficient computation in the Grid. As a validation of Chimera mesh technique implementation, computed results around the Titan IV launch vehicle is compared with experimental data and, as a validation of base flow analysis, the aerodynamic coefficients of a strap-on booster of KSR-III is analyzed numerically. The complete analysis process is then applied to the KSR-III, a three-stage sounding rocket researched in Korea. From the analyses, the base flow effect on separation motions of strap-on boosters are investigated and the different aerodynamic characteristics of inviscid and viscous flows at every time interval are examined. In addition, a guidance map of the jettisoning forces and moments for a safe separation is presented from various simulations of separation phenomena with different jettisoning conditions. | en |
dc.description.sponsorship | The authors would like to acknowledge the support from KISTI (Korea Institute of Science and Technology
Information) under `The Sixth Strategic Supercomputing Support Program' with Dr. Cho as the technical supporter. | en |
dc.language.iso | en | - |
dc.publisher | American Institute of Aeronautics and Astronautics | en |
dc.subject | Separation Motion of Strap-on Boosters | en |
dc.subject | Chimera Overset Mesh | en |
dc.subject | The Grid | en |
dc.subject | Base Flow | en |
dc.title | Separation Analysis of Strap-ons in the Multi-stage Launch Vehicle Using the Grid Computing Technique | en |
dc.type | Conference Paper | en |
dc.contributor.AlternativeAuthor | 고순흠 | - |
dc.contributor.AlternativeAuthor | 김종암 | - |
dc.contributor.AlternativeAuthor | 김규홍 | - |
dc.contributor.AlternativeAuthor | 조금원 | - |
dc.identifier.doi | 10.2514/6.2006-277 | - |
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