2021
DOI: 10.1017/jfm.2021.953
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Turbulent flow in curved channels

Abstract: Fully developed turbulent flow in channels with mild to strong longitudinal curvature is studied by direct numerical simulations. The Reynolds based on the bulk mean velocity and channel half-width $\delta$ is fixed at $20\,000$ , resulting in a friction Reynolds number of approximately 1000. Four cases are considered with curvature varying from $\gamma = 2\delta /r_c = 0.033$ to 0.333, where $r_c$ is… Show more

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Cited by 17 publications
(4 citation statements)
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“…Fig. 2 shows the root-mean-square (rms) of the velocity fluctuations of the present DNS (STREAmS) together with the data from Moser and Moin [13] and Brethouwer [14]. The excellent agreement of the results can be noted.…”
Section: Resultsmentioning
confidence: 52%
“…Fig. 2 shows the root-mean-square (rms) of the velocity fluctuations of the present DNS (STREAmS) together with the data from Moser and Moin [13] and Brethouwer [14]. The excellent agreement of the results can be noted.…”
Section: Resultsmentioning
confidence: 52%
“…For this purpose, we considered the classical study by Moser & Moin [18], where pressure-driven flow in a mildly-curved channel was simulated. The same flow configuration was recently used by Brethouwer [19] as benchmark. The computational Fig.…”
Section: Turbulent Curved Channel Flowmentioning
confidence: 99%
“…When studying an ejector with a curved mixing chamber, it is necessary to consider the study results of S-shaped ducts. The large curvature of modern S-shaped ducts causes a strong secondary flow, which strongly affects flow uniformity [49][50][51]. Fully developed turbulent flow in ducts with weak and strong longitudinal curvature is studied by direct numerical simulation [51].…”
Section: Introductionmentioning
confidence: 99%