LU-SGS implicit algorithm for three-dimensional incompressible Navier-Stokes equations with source termA numerical method is developed for solving the incompressible Navier-Stokes equations using the concept of pseudocompressibility. A lower-upper symmetric-Gauss-Seidel implicit scheme is developed for three-dimensional incompressible viscous flow computations. The present algorithm offers additional advantages when solving the flow equations with source terms. Complete vectorizability of the algorithm on oblique planes of sweep in three-dimensions is accomplished in a new flow solver, INS3D-LU code. Spatial differencing is a second-order accurate semi-discrete finite-volume method augmented by a third-order accurate numerical dissipation model which is based on spectral-radii. Comparison of numerical solutions for a curved duct with experimental data shows good agreement. The method is applied to calculate the inducer flow of the Space Shuttle Main Engine turbopump.
Document ID
19890054438
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yoon, Seokkwan (MCAT Inst. Moffett Field, CA, United States)
Chang, Leon (MCAT Institute Moffett Field, CA, United States)
Kwak, Dochan (NASA Ames Research Center Moffett Field, CA, United States)