2D-compressible-Navier-Stokes

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2D-compressible-Navier-Stokes

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Solves the 2D compressible Navier-Stokes equations using finite-difference with a staggered grid arrangement to simulate acoustic waves.

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**Date written: December 2018**

As part of the final project for ME 614 (Computational Fluid Dynamics) at Purdue University taught by Professor Scalo of the Mechanical Engineering department.

# 2D Compressible Navier-Stokes Solver

Solves the 2D compressible Navier-Stokes equations using finite-difference with a staggered grid arrangement to simulate acoustic waves in a doubly periodic domain. For more details, please refer to the report by clicking <a href="https://drive.google.com/file/d/1qocItR1IN5ylLHkofGhHvIjnUkgmUOeU/view?usp=sharing" target="_blank">here</a>.

## Evolution of Pressure in Acoustic Waves

The pressure fluctuations of acoustic waves in a doubly periodic domain are shown below.

## Order of Accuracy Verification

Below illustrates the expected 2nd-order convergence of the staggered finite-difference scheme is acheived.

## Staggered Grid Arrangement

The grid arrangement for x-velocity, y-velocity, and passive scalars are shown below, respectfully.

## Finite-Difference Operators

The sparsity pattern for the finite-difference operators for the x-momentum, y-momentum, and energy equations are shown below, respectfully.

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