Design and Fabrication of hand operated mini Shock Tube

Nambiar, Gautham K; Sriram, M; Dharanidhar, M; Nair, Prashant G.; Nagaraja, S. R.

doi:10.1088/1757-899x/225/1/012025

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…Shock tubes can also be used as a tool to direct the blast waves and to know about the exploitation materials and about the flying debris. High speed flow in the shock tube has been observed by Wegener and Lundquits, use of air familiar humidity in electronica detect and highthe pressure was the present of water drop flows up with diaphragm with the limited scatter of light from the droplets (Wegener and Lundquist, 1951;Nambiar et al, 2017).…”

Section: Introductionmentioning

confidence: 86%

Development of cost-effective shock tube based on experimental and numerical analysis

Ramesh

Kengaiah²,

Gutema

et al. 2021

AEAT

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Purpose The purpose of the study is to design economical shock tube. It is an instrument used for experimental investigations not only related to shock phenomena but also for the behavior of the material when it is subjected to high-speed flow. The material used here in this shock tube is stainless steel ss304 and aluminum. A shock tube consists of two sections, namely, the driver and the driven. The gas in the driven and driver is filled with atmospheric air and nitrogen, respectively, under the predominant condition. Design/methodology/approach The focus of the study is on the design and fabrication of shock tubes. a shock tube is a research tool to make an aerodynamic test in the presence of high pressure and temperature by generating moving normal shock waves under controlled conditions. Findings The main necessity for instrumentation in the shock tube experiment is to know the velocity of the moving shock wave from which the other parameters can be calculated. the pressure transducers are located in the shock tube in various locations to measure aerodynamic parameters in terms of pressure. Originality/value The main objective of this project work is to make an experimental setup to produce supersonic velocity with the readily available material in the market in a highly safe manner.

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Section: Introductionmentioning

confidence: 86%

Development of cost-effective shock tube based on experimental and numerical analysis

Ramesh

Kengaiah²,

Gutema

et al. 2021

AEAT

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“…A numerical study was also carried out, and the theoretical and experimental values were compared and found to be in close agreement. Maximum velocity that could be attained using that shock tube was 1.8 Mach number (Nambiar et al , 2017).…”

Section: Introductionmentioning

confidence: 95%

Experimental investigation of diaphragm material combinations in a small-scale shock tube

Singh

Kumar

Kannan

2020

AEAT

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Purpose The purpose of this study is to experimentally investigate the trends in shock wave Mach number that were observed when different diaphragm material combinations were used in the small-scale shock tube. Design/methodology/approach A small-scale shock tube was designed and fabricated having a maximum Mach number production capacity to be 1.5 (theoretically). Two microphones attached in the driven section were used to calculate the shock wave Mach number. Preliminary tests were conducted on several materials to obtain the respective bursting pressures to decide the final set of materials along with the layered combinations. Findings According to the results obtained, 95 GSM tracing paper was seen to be the strongest reinforcing material, followed by 75 GSM royal executive bond paper and regular 70 GSM paper for aluminium foil diaphragms. The quadrupled layered diaphragms revealed a variation in shock Mach number based on the position of the reinforcing material. In quintuple layered combinations, the accuracy of obtaining a specific Mach number was seen to be increasing. Optimization of the combinations based on the production of the shock wave Mach number was carried out. Research limitations/implications The shock tube was designed taking maximum incident shock Mach number as 1.5, the experiments conducted were found to achieve a maximum Mach number of 1.437. Thus, an extension to further experiments was avoided considering the factor of safety. Originality/value The paper presents a detailed study on the effect of change in the material and its position in the layered diaphragm combinations, which could lead to variation in Mach numbers that are produced. This could be used to obtain a specific Mach number for a required study accurately, with a low-cost setup.

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Nonclassical wave propagation measurements in the high temperature vapor of $$\hbox {D}_{6}$$ with the asymmetric shock tube for experiments in rarefaction waves (ASTER)

Chandrasekaran,

Michelis,

Mercier

et al. 2024

Exp Fluids

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A novel test setup called the asymmetric shock tube for experiments on nonideal rarefaction waves (ASTER) has been commissioned at Delft University of Technology. The ASTER, which works according to the principle of Ludwieg tubes, is designed to generate and measure the speed of small and finite amplitude waves propagating in the dense vapors of fluids formed by complex organic molecules, therefore in the nonideal compressible fluid dynamics regime. The ultimate goal of the associated research is to prove the existence of nonclassical gasdynamics. The setup consists of a high-pressure charge tube and a vacuum tank separated by a glass disk equipped with a breaking mechanism for rarefaction waves experiments. When the glass disk is broken, an expansion wave propagates into the tube in the direction opposite to the fluid flow. The propagation speed of this wave is measured using a time-of-flight method with the help of four fast-response pressure sensors placed equidistantly in the middle of the tube. The charge tube can withstand pressures and temperatures of up to 15 bar and 400$$^{\circ }\mathrm{C}$$ ∘ C . Preliminary rarefaction experiments were successfully conducted using dodecamethylcyclohexasiloxane, $$\hbox {D}_{6}$$ D 6 , as the working fluid and at pressures and temperatures of up to 9.4 bar and 372$$^{\circ }\mathrm{C}$$ ∘ C , respectively. The results of an experiment featuring the initial state for which a theoretical model predicts the nonclassical acceleration of rarefaction waves show that the propagation is qualitatively different from that put into evidence by experiments for which the propagation is classic. Upcoming setup improvements and experimental campaigns are planned with the objective of experimentally verifying the existence of nonclassical gasdynamics. Graphical abstract

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Design and Fabrication of hand operated mini Shock Tube

Cited by 7 publications

References 12 publications

Development of cost-effective shock tube based on experimental and numerical analysis

Development of cost-effective shock tube based on experimental and numerical analysis

Experimental investigation of diaphragm material combinations in a small-scale shock tube

Nonclassical wave propagation measurements in the high temperature vapor of $$\hbox {D}_{6}$$ with the asymmetric shock tube for experiments in rarefaction waves (ASTER)

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