Numerical and experimental investigation of gas-gas diffusion and convection

Lyu W, Kim S, Delgado A, Gatternig B, Troeger K, Schellin T (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Physics of Fluids American Institute of Physics (AIP)

Book Volume: 34

Article Number: 103602

Journal Issue: 10

DOI: 10.1063/5.0105985

Abstract

Gas-to-gas diffusion and convection phenomena exist in a wide range of applications, including industrial and scientific processes, food production and storage, and breathing gases. To analyze gas-gas mixing phenomena, a numerical model based on open-source tool libraries was developed and validated; an experimental model was built up and repeated physical tests were performed. Comparative mixing gas-gas profiles and O2 concentration time histories were presented to analyze gas-gas phenomena and to validate the developed numerical solver. Practically, relevant assessments of the gas-to-gas diffusion and convection process demonstrated that (1) obstacles accelerated gas-gas diffusion and convection, (2) diffusion and convection stabilized after a certain time period, and (3) stronger diffusion and convection occurred during the initial stages of the gas-to-gas contact.

Authors with CRIS profile

Antonio Delgado Lehrstuhl für Strömungsmechanik

Involved external institutions

German Engineering Research and Development Center LSTME KR Korea, Republic of (KR) Universität Duisburg-Essen (UDE) DE Germany (DE) Hochschule Weihenstephan-Triesdorf DE Germany (DE)

How to cite

APA:

Lyu, W., Kim, S., Delgado, A., Gatternig, B., Troeger, K., & Schellin, T. (2022). Numerical and experimental investigation of gas-gas diffusion and convection. Physics of Fluids, 34(10). https://dx.doi.org/10.1063/5.0105985

MLA:

Lyu, Wenjing, et al. "Numerical and experimental investigation of gas-gas diffusion and convection." Physics of Fluids 34.10 (2022).

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