Wind Tunnel Tests of Influence of Boosters and Fins on Aerodynamic Characteristics of the Experimental Rocket Platform

Ruchała, Paweł; Placek, Robert; Stryczniewicz, Wit; Matyszewski, Jan; Cieśliński, Dawid; Bartkowiak, Bartosz

doi:10.2478/tar-2017-0030

Cited by 9 publications

(6 citation statements)

References 6 publications

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“…It can be seen that during the maiden flight of the ILR-33 AMBER rocket, booster separation occurred approximately 15 s after the end of burn. This was due to non-nominal performance-aerodynamic loads were used to ensure immediate separation of the booster stage at their burnout, as discussed in [103,113]. Further flights included booster separation systems using pyrotechnical devices apart from aerodynamic loads, which was found to be successful.…”

Section: In-flight Test Campaignsmentioning

confidence: 99%

Development of Green Storable Hybrid Rocket Propulsion Technology Using 98% Hydrogen Peroxide as Oxidizer

et al. 2021

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This paper presents the development of indigenous hybrid rocket technology, using 98% hydrogen peroxide as an oxidizer. Consecutive steps are presented, which started with interest in hydrogen peroxide and the development of technology to obtain High Test Peroxide, finally allowing concentrations of up to 99.99% to be obtained in-house. Hydrogen peroxide of 98% concentration (mass-wise) was selected as the workhorse for further space propulsion and space transportation developments. Over the course nearly 10 years of the technology’s evolution, the Lukasiewicz Research Network—Institute of Aviation completed hundreds of subscale hybrid rocket motor and component tests. In 2017, the Institute presented the first vehicle in the world to have demonstrated in-flight utilization for 98% hydrogen peroxide. This was achieved by the ILR-33 AMBER suborbital rocket, which utilizes a hybrid rocket propulsion as the main stage. Since then, three successful consecutive flights of the vehicle have been performed, and flights to the Von Karman Line are planned. The hybrid rocket technology developments are described. Advances in hybrid fuel technology are shown, including the testing of fuel grains. Theoretical studies and sizing of hybrid propulsion systems for spacecraft, sounding rockets and small launch vehicles have been performed, and planned further developments are discussed.

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Section: In-flight Test Campaignsmentioning

confidence: 99%

Development of Green Storable Hybrid Rocket Propulsion Technology Using 98% Hydrogen Peroxide as Oxidizer

et al. 2021

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“…Those values belonged to the four ventilators, and the first step performed for their analysis was to separate the set into four subsets, one for each ventilator. The resulting subsets were p vi , with i = (1,2,3,4), where the size of each subset was the same (11,000 data). Once we obtained the four subsets, we divided each of them into two, one for training tr and the other for testing tt, where 8000 data were used for the training set and 3000 were used for the testing set.…”

Section: Applying Probability Distributions For Anomaly Detection In mentioning

confidence: 99%

“…In the case of wind tunnel infrastructure-the object of study of this work-the fans that are part of the system are designed with different purposes, providing a concentrated stream of air in either a vertical or horizontal flow, in order to perform different tests on aircrafts [1], rocket models [2], and cars; to measure the aerodynamic of objects and systems [3]; to study fluid dynamics; and for the research and development of machines or buildings for which the flux of air around them is a critical matter [4]. Wind tunnels are also used as training facilities.…”

Section: Introductionmentioning

confidence: 99%

Outlier Detection Transilience-Probabilistic Model for Wind Tunnels Based on Sensor Data

Quesada¹,

Cuadrado-Gallego

Patricio

et al. 2021

Sensors

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Anomaly Detection research is focused on the development and application of methods that allow for the identification of data that are different enough—compared with the rest of the data set that is being analyzed—and considered anomalies (or, as they are more commonly called, outliers). These values mainly originate from two sources: they may be errors introduced during the collection or handling of the data, or they can be correct, but very different from the rest of the values. It is essential to correctly identify each type as, in the first case, they must be removed from the data set but, in the second case, they must be carefully analyzed and taken into account. The correct selection and use of the model to be applied to a specific problem is fundamental for the success of the anomaly detection study and, in many cases, the use of only one model cannot provide sufficient results, which can be only reached by using a mixture model resulting from the integration of existing and/or ad hoc-developed models. This is the kind of model that is developed and applied to solve the problem presented in this paper. This study deals with the definition and application of an anomaly detection model that combines statistical models and a new method defined by the authors, the Local Transilience Outlier Identification Method, in order to improve the identification of outliers in the sensor-obtained values of variables that affect the operations of wind tunnels. The correct detection of outliers for the variables involved in wind tunnel operations is very important for the industrial ventilation systems industry, especially for vertical wind tunnels, which are used as training facilities for indoor skydiving, as the incorrect performance of such devices may put human lives at risk. In consequence, the use of the presented model for outlier detection may have a high impact in this industrial sector. In this research work, a proof-of-concept is carried out using data from a real installation, in order to test the proposed anomaly analysis method and its application to control the correct performance of wind tunnels.

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“…The non-standard shape of the rocket required a wind tunnel investigation of the first version of ILR - 33 (Ruchała et al , 2017). To optimise the size of the SRBs, a parametric model was used to generate configurations varying in diameters, total masses and impulses (Pakosz et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

“…An early version of the ILR-33 Amber rocket, which is not the subject of this article, was previously tested under subsonic conditions in the open-jet low-speed wind tunnel at Łukasiewicz – Institute of Aviation, where the influence of fins and boosters on axial and normal forces and moments was investigated with the aim of further optimising the design (Ruchała et al , 2017). Other recent examples of subsonic rocket testing include evaluating the impact of thrust vectoring lateral jets on the aerodynamic characteristics of a missile (Ocokolić and Rašuo, 2012), iterative shape optimisation of missile wings (Ocokolić et al , 2017) and an investigation of the impact of nozzle configurations in the near wake of a generic rocket (Wolf et al , 2012).…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the boosters impact on the rocket aerodynamic characteristics

Krzysiak

Cieśliński

Placek

et al. 2022

AEAT

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Purpose The purpose of this study is to determine the impact of two parallel boosters fixed to the ILR 33 AMBER 2 K core rocket stage on its aerodynamic characteristics in the subsonic and transonic regimes and for M = 2.3. Design/methodology/approach Wind tunnel tests of the rocket model were carried out in a trisonic wind tunnel using a six-component internal balance. Three rocket model configurations were investigated. Findings The results of the presented studies showed that the presence of boosters causes a significant increase in the total rocket drag, which depends on both the Mach number and the rocket flight phase. Experimental tests of the rocket model allowed to determine the difference in drag coefficient between active and passive flight versus Mach number. It was found that, in the case of a deviation from the rocket’s flight direction, the aerodynamic coefficients strongly depend on the location of the boosters in relation to the direction of the deviation. Practical implications Studies of the rocket model aerodynamic characteristics allow the assessment of the influence of parallel boosters on rocket performance, which is important when the decision of a rocket staging type is taken. Originality/value The presented wind tunnel test results of the rocket model equipped with the two parallel boosters are an original contribution to the rocket research results presented in the literature.

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Wind Tunnel Tests of Influence of Boosters and Fins on Aerodynamic Characteristics of the Experimental Rocket Platform

Cited by 9 publications

References 6 publications

Development of Green Storable Hybrid Rocket Propulsion Technology Using 98% Hydrogen Peroxide as Oxidizer

Development of Green Storable Hybrid Rocket Propulsion Technology Using 98% Hydrogen Peroxide as Oxidizer

Outlier Detection Transilience-Probabilistic Model for Wind Tunnels Based on Sensor Data

Experimental study of the boosters impact on the rocket aerodynamic characteristics

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