Hybrid spectral-particle method for the turbulent transport of a passive scalar

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Hybrid spectral-particle method for the turbulent transport of a passive scalar

Article history: Received 29 April 2013 Received in revised form 28 November 2013 Accepted 8 December 2013 Available online 18 December 2013

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Passive scalar transport is a fundamental problem of a variety of industrial applications. One of the representatives is the fluid mixing process [1], which has been intensively studied as an important physical phenomenon in chemical engineering field. A number of numerical calculations of passive scalar transport problem have been carried out by means of the gridbased approach. However, the gr...

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The transport of passive scalar in turbulent flows remains a challenging and important problem for several reasons. First, the passive scalar spectra exhibit various behaviors depending on the molecular Schmidt number value (see [3]). The passive scalar spectrum with a high Schmidt number exhibits thus a k−1 scaling between the Kolmogorov scale and the Batchelor scale [1]. This suggests that it...

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ژورنال

عنوان ژورنال: Journal of Computational Physics

سال: 2014

ISSN: 0021-9991

DOI: 10.1016/j.jcp.2013.12.026