Jamison, Kevin A2019-05-312019-05-312018-09Jamison, K.A. 2018. Grid-mode transonic store separation analysis using modern design of experiments. In: 31st Congress of the International Council of the Aeronautical Sciences, Belo Horizonte, Brazil, 9-14 September 2018978-3-932182-88-4http://icas.dglr.de/icas2018/index.htmlhttp://hdl.handle.net/10204/10997Presented in: 31st Congress of the International Council of the Aeronautical Sciences, Belo Horizonte, Brazil, 9-14 September 2018. Due to copyright restrictions, the attached PDF file only contains the abstract of the full-text item. For access to the full-text item, please consult the publisher's website. While waiting for the post-print or published PDF document from the publisherThe analysis of the separation of a Precision Guided Munition (PGM) from many configurations of an advanced jet trainer was performed using aerodynamic data from wind-tunnel tests characterised using the grid method. As strong aerodynamic mutual interference is present due to transonic shockwaves between the wing of the aircraft and the tail of PGM the loads on the store changes significantly for different combinations of PGM position and orientation relative to the aircraft. This means that the grid method must sample a wide range of positions and orientations. If this is done in usual manner, the grid test matrix is large and costly. There is another method for efficiently characterising phenomena with a number of mutually interacting variables known as the Modern Design of Experiments (MDOE) which can significantly reduce the number of grid samples required. The possibility of developing the grid test matrix using the MDOE method is investigated using a simple panel code model. The correct approach to implement the MDOE grid method is identified and the relative interpolation errors are characterised. The application of the MDOE method to the trainer jet/PGM separation wind-tunnel test is described.enGrid modeModern design of experimentsStore separationTransonicConference PresentationJamison, K. A. (2018). Grid-mode transonic store separation analysis using modern design of experiments. ICAS. http://hdl.handle.net/10204/10997Jamison, Kevin A. "Grid-mode transonic store separation analysis using modern design of experiments." (2018): http://hdl.handle.net/10204/10997Jamison KA, Grid-mode transonic store separation analysis using modern design of experiments; ICAS; 2018. http://hdl.handle.net/10204/10997 .TY - Conference Presentation AU - Jamison, Kevin A AB - The analysis of the separation of a Precision Guided Munition (PGM) from many configurations of an advanced jet trainer was performed using aerodynamic data from wind-tunnel tests characterised using the grid method. As strong aerodynamic mutual interference is present due to transonic shockwaves between the wing of the aircraft and the tail of PGM the loads on the store changes significantly for different combinations of PGM position and orientation relative to the aircraft. This means that the grid method must sample a wide range of positions and orientations. If this is done in usual manner, the grid test matrix is large and costly. There is another method for efficiently characterising phenomena with a number of mutually interacting variables known as the Modern Design of Experiments (MDOE) which can significantly reduce the number of grid samples required. The possibility of developing the grid test matrix using the MDOE method is investigated using a simple panel code model. The correct approach to implement the MDOE grid method is identified and the relative interpolation errors are characterised. The application of the MDOE method to the trainer jet/PGM separation wind-tunnel test is described. DA - 2018-09 DB - ResearchSpace DP - CSIR KW - Grid mode KW - Modern design of experiments KW - Store separation KW - Transonic LK - https://researchspace.csir.co.za PY - 2018 SM - 978-3-932182-88-4 T1 - Grid-mode transonic store separation analysis using modern design of experiments TI - Grid-mode transonic store separation analysis using modern design of experiments UR - http://hdl.handle.net/10204/10997 ER -