Shock Wave Treated PVA Films as Alternative Bio Degradable Polymer for Packaging Industry

Thirumalesh, Thirumalesh; Raju, Sathyamurthy; Sosmashekharappa, H. M.

doi:10.21272/jnep.12(2).02034

Cited by 3 publications

(2 citation statements)

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“…Using the above described setup, series of experiments were conducted to study the effects of shock wave treatment on different materials. Among them, study of shock wave impacts on Poly (vinyl alcohol) -PVA films 13,14 were very much fruitful and got remarkable achievement in significant increase in the electrical conductivity 13 and increase in the water contact angle by an amount of 110 • , making the material from hydrophilic to hydrophobic. 14…”

Section: Experimentationmentioning

confidence: 99%

“…The potential of shock waves to produce nonlinear pressure and temperature surges in the medium of propagation, finds exciting applications in diversified fields, such as, extraction of juice from fruits and vegetables, 5,6 the design and modeling of an aircraft, 7 insertion of DNA into a biological cell, 8 treatment of heart, 9,10 kidney stones, 11 and so on. Also, the applications extend to the material processing, [12][13][14][15][16] manufacturing and other industries. 4,[17][18][19] Therefore, to get more applications out of shockwave phenomenon; it is very much required to produce shock waves in the laboratory or industry in a controlled manner.…”

Section: Introductionmentioning

confidence: 99%

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Shock tube data processing tools using open source hardware and software platforms

Thirumalesh

Raju²,

Somashekarappa

et al. 2020

Engineering Reports

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To cater the need of specific shock-tube data acquisition and processing system, a low cost open-source alternative has been developed and presented in this paper. Using easily available open-source hardware and software platforms such as ARDUINO, a robust 5.3 MHz speed data acquisition system along with optimized shock tube data processing software is designed and an indigenous shock tube data processing tool has been developed. This has been found to be 10 times less cost than the general-purpose computing equipment available on the market, with a substantial reduction in shockwave data processing time and effort. The setup has been tested with the different diaphragms producing shockwaves of different Mach numbers. The experimental results are compared with the theoretical values obtained using normal shock relations and are found to be consistent with admissible error limits. This validates the design and construction of the device for scientific experiments.

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