This report, along with Laurent Gourc’s and Ben Marchant’s reports, presents the work done on the development of the new AcBuilder, realized for CEASIOM. Further Developments of the Acbuilder Tool for Constructing Geometrical Models of Aircraft (Mechanical Project).Due to the large number of possible store combinations, wind tunnel tests – the primary approach to obtaining. Loads determination for external stores on fighter aircraft is an important task for manufacturers in ensuring the safe operation of their aircraft.
Evaluation of a CFD method for estimating aerodynamic loads on external stores on JAS 39 Gripen (Mechanical Project).This study presents a first iteration of an implementation of a FWMAV in. With this comes a need for future users to test and evaluate these vehicles with simulations.
The interest for Flapping Wing Micro Air Vehicles (FWMAV) is growing.
WATER ROCKET SIMULATION SIMULATOR
WATER ROCKET SIMULATION HOW TO
The student will also be able to make suggestions on how to make changes to the original rocket design to ensure that a desired outcome is achieved, i.e. The student is able to predict a quantitative value, compare that value to an experimental quantitative value, and determine the accuracy of the prediction. However, using the flight simulator and the same initial conditions used in the study will ensure that engineering can be a large part of STEM water rocket activities at the upper division level of STEM education.īy having students predict the maximum height of a water rocket with predetermined input parameters, and then test those predictions against experimental results, the student is able to participate in the practice of engineering and enhance their knowledge of physics and fluid mechanics principles. It was not determined if the findings of the study are generalizable to different geometry water bottle rockets or different sets of initial input parameters. This level of accuracy is only assured with the use of the initial input parameters of 40 psi and 400 mL water volume level in 1 L plastic water bottle rockets. The study determined that the Excel ® Water Rocket Flight Simulator is able to predict maximum height within 5.773% of the actual maximum height of water bottle rockets with 95% confidence. The first grouping of data from the second method of launch testing is discussed first. Conclusions and recommendations are also stated. In this chapter, the implications of the results from the second method of launch testing are discussed, including the legitimacy of the results and areas of concern, the generalizability of the results to the use of the water rocket flight simulator in STEM water rocket activities, and further limitations and constraints of the findings. This data shows that precision is not the problem, but accuracy is, therefore revealing a flaw in the prediction capabilities of the simulator without a calibration factor. It can be seen from figure 19 that although the standard deviation of the data increased slightly by 8.1%, the mean increased dramatically by 73.1%. The error bars indicate the calculated standard error of just the batch 2 data. Further validation of the simulator at other input parameters is needed to ensure the calibration factor enables the accurate prediction of maximum height with varied input parameters, as is common occurrence in STEM water rocket activities.įigure 19: Seattle percent error not adjusted with a calibration factor. The simulator was able to predict maximum height of a water rocket at specific input parameters within 5.773% with 95% confidence using a calibration factor to account for unknown sources of error. The simulator was constructed in Excel ® with many functions, but the function validated in this study was the prediction of maximum height. This study investigated the amount of engineering present in water rocket activities, and options for emphasizing engineering more in water rocket activities using an open-platform flight simulator for use by educators to enable students to predict flight parameters of a water rocket they designed, and test those predictions against experimental data. Water rocket activities are one of the most popular STEM activities used in primary, secondary, and higher education yet are void of engineering, though engineering is heavily implied in the STEM acronym.
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