In this review article, we discuss recent progress with regard to modeling gravity-driven, high Reynolds number currents, with the emphasis on depth-resolving, high-resolution simulations. The initial sections describe new developments in the conceptual modeling of such currents for the purpose of identifying the Froude number–current height relationship, in the spirit of the pioneering work by von Kármán and Benjamin. A brief introduction to depth-averaged approaches follows, including box models and shallow water equations. Subsequently, we provide a detailed review of depth-resolving modeling strategies, including direct numerical simulations (DNS), large-eddy simulations (LES), and Reynolds-averaged Navier–Stokes (RANS) simulations. The strengths and challenges associated with these respective approaches are discussed by highlighting representative computational results obtained in recent years.
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July 2015
Review Articles
Modeling Gravity and Turbidity Currents: Computational Approaches and Challenges
Eckart Meiburg,
Eckart Meiburg
Department of Mechanical Engineering,
University of California,
Santa Barbara, CA 93106
e-mail: meiburg@engineering.ucsb.edu
University of California,
Santa Barbara, CA 93106
e-mail: meiburg@engineering.ucsb.edu
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Senthil Radhakrishnan,
Senthil Radhakrishnan
Department of Mechanical Engineering,
University of California,
Santa Barbara, CA 93106
e-mail: senthil@engineering.ucsb.edu
University of California,
Santa Barbara, CA 93106
e-mail: senthil@engineering.ucsb.edu
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Mohamad Nasr-Azadani
Mohamad Nasr-Azadani
Department of Mechanical Engineering,
University of California,
Santa Barbara, CA 93106
e-mail: mmnasr@engineering.ucsb.edu
University of California,
Santa Barbara, CA 93106
e-mail: mmnasr@engineering.ucsb.edu
Search for other works by this author on:
Eckart Meiburg
Department of Mechanical Engineering,
University of California,
Santa Barbara, CA 93106
e-mail: meiburg@engineering.ucsb.edu
University of California,
Santa Barbara, CA 93106
e-mail: meiburg@engineering.ucsb.edu
Senthil Radhakrishnan
Department of Mechanical Engineering,
University of California,
Santa Barbara, CA 93106
e-mail: senthil@engineering.ucsb.edu
University of California,
Santa Barbara, CA 93106
e-mail: senthil@engineering.ucsb.edu
Mohamad Nasr-Azadani
Department of Mechanical Engineering,
University of California,
Santa Barbara, CA 93106
e-mail: mmnasr@engineering.ucsb.edu
University of California,
Santa Barbara, CA 93106
e-mail: mmnasr@engineering.ucsb.edu
1Corresponding author.
Manuscript received January 13, 2015; final manuscript received July 8, 2015; published online July 27, 2015. Assoc. Editor: Herman J. H. Clercx.
Appl. Mech. Rev. Jul 2015, 67(4): 040802 (23 pages)
Published Online: July 27, 2015
Article history
Received:
January 13, 2015
Revision Received:
July 8, 2015
Citation
Meiburg, E., Radhakrishnan, S., and Nasr-Azadani, M. (July 27, 2015). "Modeling Gravity and Turbidity Currents: Computational Approaches and Challenges." ASME. Appl. Mech. Rev. July 2015; 67(4): 040802. https://doi.org/10.1115/1.4031040
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