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A solution procedure for three-dimensional incompressible navier-stokes equation and its application
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chang, J. L. C. Shanks, S. P. Kwak, D. |
| Copyright Year | 1984 |
| Description | An implicit, finite-difference procedure is presented for numerically solving viscous incompressible flows. For convenience of applying the present method to three-dimensional problems, primitive variables, namely the pressure and velocities, are used. One of the major difficulties in solving incompressible flows that use primitive variables is caused by the pressure field solution method which is used as a mapping procedure to obtain a divergence-free velocity field. The present method is designed to accelerate the pressure-field solution procedure. This is achieved by the method of pseudocompressibility in which the time derivative pressure term is introduced into the mass conservation equation. The pressure wave propagation and the spreading of the viscous effect is investigated using simple test problems. The present study clarifies physical and numerical characteristics of the pseudo-compressible approach in simulating incompressible flows. Computed results for external and internal flows are presented to verify the present procedure. The present algorithm has been shown to be very robust and accurate if the selection of the pseudo-compressibility parameter has been made according to the guidelines given. |
| File Size | 358094 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840018598 |
| Archival Resource Key | ark:/13960/t24b7x67x |
| Language | English |
| Publisher Date | 1984-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Navier-stokes Equation Incompressible Flow Conservation Equations Three Dimensional Flow Computational Fluid Dynamics Finite Difference Theory Problem Solving Pressure Distribution Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
