Výsledky vyhledávání - "Aswathy Surendran"

Adapting a slit model to determine the aeroacoustic response of tube rows

Autor: Aswathy Surendran, Wei Na, Charles Boakes, Dong Yang, Aimee Morgans, Susann Boij

Publikováno v: INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 265:5605-5614

Cylindrical tubes in cross-flow, like the ones found in heat exchangers, are excellent acoustic dampers and as such have the potential to mitigate thermoacoustic instabilities. Flow separation and vortex shedding downstream of the tube row are key to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bf983a71df52e6a5f1af9bed413b2625
https://doi.org/10.3397/in_2022_0826

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A slug length calculation for a contraction with mean flow between two half cylinders

Autor: Wei Na, Dong Yang, Aswathy Surendran, Susann Boij, Aimee Morgans, Huadong Yao

Publikováno v: INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 265:5128-5132

A slug length is widely used to describe additional mass inertia at low frequencies in duct acoustics. It is often used in acoustic energy analysis, e.g. as one of the inputs for semi-analytical or empirical models to obtain the acoustic reflection a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0a01d6f741e4f16a00badbe09c6940a4
https://doi.org/10.3397/in_2022_0743

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Low order modelling of thermoacoustic instabilities in aero-propulsion engines

Autor: Aswathy Surendran, Charles Boakes, Dong Yang, Aimee Morgans

Publikováno v: INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 265:5595-5604

In the present work, we investigate the thermoacoustic stability behaviour of a combustor-heat exchanger assembly pertinent to the Synergetic Air Breathing Rocket Engine (SABRE) of Reaction Engines Ltd. Since the thermoacoustic behaviour of heat exch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::348cc9c85c3719e1f46299f00919bd9f
https://doi.org/10.3397/in_2022_0825

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A low frequency model for the aeroacoustic scattering of cylindrical tube rows in cross-flow

Autor: Aswathy Surendran, Wei Na, Charles Boakes, Dong Yang, Aimee Morgans, Susann Boij

Heat exchanger tube rows can influence the thermoacoustic instability behaviour of combustion systems since they act as both acoustic scatterers and unsteady heat sinks. Therefore, with careful tuning of their thermoacoustic properties, heat exchange

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42e4b23821d0c3e495f510964820a8b0

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Passive control of instabilities in combustion systems with heat exchanger

Autor: N. Hosseini, Aswathy Surendran, O. J. Teerling, Maria A. Heckl

Publikováno v: International Journal of Spray and Combustion Dynamics, 10(4), 362-379. Multi-Science Publishing Co. Ltd
International Journal of Spray and Combustion Dynamics, Vol 10 (2018)

One of the major concerns in the operability of power generation systems is their susceptibility to combustion instabilities. In this work, we explore whether a heat exchanger, an integral component of a domestic boiler, can be made to act as a passi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a28e24af3932eb032c5430230c58cc5
https://research.tue.nl/nl/publications/5f531db2-c980-4f40-af4d-a24ce79d22d4

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Aeroacoustic response of an array of tubes with and without bias-flow

Autor: Susann Boij, Hans Bodén, Maria A. Heckl, Luck Peerlings, Aswathy Surendran, A Avraham Hirschberg

Publikováno v: Journal of Sound and Vibration, 434, 1-16. Academic Press Inc.

Heat exchangers, consisting of tube arrays in a cross-flow are a vital component of power generation systems. They are of interest from an acoustic point of view, because they can reflect, transmit and absorb an incident sound wave; in other words, t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71cf01860001612a9602f06b1b21c492

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Akademický článek

Smart Token Management System for Hospitals using IoT.

Autor: Prathap, Deepak T., C. R., Ramesh, P., Aswathy Surendran

Publikováno v: Grenze International Journal of Engineering & Technology (GIJET); 2021, Vol. 7 Issue 1, p519-824, 6p

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Passive instability control by a heat exchanger in a combustor with nonuniform temperature

Autor: Aswathy Surendran, Maria A. Heckl

Publikováno v: International Journal of Spray and Combustion Dynamics, Vol 9 (2017)

Thermoacoustic instabilities, caused by the feedback between unsteady heat release and acoustic pressure perturbations, are characterised by large-amplitude pressure oscillations. These oscillations, if uncontrolled, pose a threat to the integrity of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98339b48e2c84da414494a18ccf14cd9
https://doaj.org/article/ba9e41ce54244b9b8d18b77364746d74

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