2.2. Sod's Shock Tube Problem
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The 1D Sod shock tube, which can be solved analytically, is a Riemann problem used as a standard test problem in computational hydrodynamics.
[1] G.A. Sod, A survey of Several Finite Difference Methods for Systems of Nonlinear Hyperbolic Conservation, Journal of Computational Physics, 1978 vol. 27, pp. 1-31.
[2] J. Xiao, W. Breitung, M. Kuznetsov, H. Zhang, J. R. Travis, R. Redlinger, T. Jordan, “GASFLOW-MPI: A new 3-D parallel all-speed CFD code for turbulent dispersion and combustion simulations: Part I: Models, verification and validation”, International Journal of Hydrogen Energy, March 2017.
This tutorial demonstrates how to do the following:
Launch the GASFLOW graphical user interface: GASVIEW.
Create a new project.
Generate the mesh using the built-in tool.
Set numerical control parameters.
Enable the second-order discretization scheme for improved predictions.
Set gas properties, initial conditions and boundary conditions for a shock tube problem.
Set physical model for a shock tube problem.
Set output parameters for a 1D shock tube problem.
Generate and check the GASFLOW input file, ingf.
Set the remote GASFLOW server and run a calculation.
Plot the calculation results.
1) GASFLOW input file
2) GASFLOW results files
3) Comparison to the analytical solutions
