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H3D

Overview
H3D is a CFD code for the analysis of 3-D flows in turbomachinery developed by Dr. Chunill Hah at NASA Glenn Research Center. The code solves the full Navier-Stokes equations using a pressure based solver with a standard two-equation turbulence model and a large eddy simulation (LES).

For more information about H3D, contact Dr. Chunill Hah,
Chunill.Hah@nasa.gov

Applications

  • Pumps and impellers including splitters
  • Compressors, and turbines

Formulation

  • Pressure based solver
  • Two-equation k-epsilon turbulence model
  • RANS, Unsteady Rans, and LES modes
  • Cavitation model
Examples
Click on a thumbnail image below to open a larger image in your browser.
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Measured and computed pressure contours near the tip of rotor 37
Pressure contours for NASA rotor 37,
Left: Experiment
Right: Steady RANS solution.

Computed pressure contours at an instant in time near the tip of rotor 37
Pressure contours for NASA rotor 37,
Unsteady LES solution.

3-D view of a grid for a inducer, pump, and diffuser
Grid for an RLV pump stage

Colored pressure contours in an inducer, pump, and diffuser
Pressure contours at the mid span of an RLV pump stage

 

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Last Updated: 08/14/2007