CORMIX-CorJet Benchmark Cases

Welcome to the CORMIX benchmarking site. This site contains a collection of data from turbulent buoyant jet mixing experiments which constitute a database for "benchmarking" model performance- comparing simulation model predictions with observations. Statistical and graphical tools are presented for interactively comparing data with CORMIX simulation model results. The benchmark database is currently restricted to single port discharges. However, it could be extended to multiport diffusers, surface discharges, etc. The benchmarks presented here are for CorJet, the buoyant jet integral model used for near-field mixing prediction within CORMIX.

As defined in "Integral Model of Turbulent Buoyant Jets in Unbounded Stratified Flows. Part I: Single Round Jet" by G.H. Jirka, Environmental Fluid Mechanics Vol. 4, pp. 1-56, 2004, a benchmarking analysis includes 3 stages for buoyant jet integral model validation:

  1. Asymptotic Buoyant Jets Cases
  2. Non-equilibrium Flows; Entrainment Relationships and Drag Force in Flow Transitions and Jet Deflections.
  3. Spatial Limits to Integral Model Application
The benchmarks include five asymptotic self-similar states of buoyant jet flows:
  1. Pure jet
  2. Pure plume
  3. Pure wake
  4. Advected Line Puff
  5. Advected Line Thermal

This site presents information about turbulent buoyant jet mixing and CORMIX model performance vis-à-vis available laboratory and field data on mixing processes. "Benchmarks" represent a set of performance standards for evaluation.

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