A multigrid algorithm for a multiblock pressure-based flow and heat transfer solver
- CFD Research Corp., Huntsville, AL (United States)
A multigrid algorithm is developed along with an implicit multiblock pressure-based solver for calculating flow and heat transfer problems on nonorthogonal grids. The implicit treatment of the block interface has proven to be important for the efficiency of a multiblock method. In this study, the implicitness is adopted for all grid levels during a multigrid solution process. As a result, the block interface becomes invisible in the final solutions and the convergence is not adversely affected. The proposed multiblock multigrid algorithm is demonstrated on several representative two-dimensional flow and heat transfer problems. The results show that order-of-magnitude saving in computational time can be achieved with the multigrid algorithm.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 418073
- Journal Information:
- Numerical Heat Transfer. Part B, Fundamentals, Journal Name: Numerical Heat Transfer. Part B, Fundamentals Journal Issue: 2 Vol. 30; ISSN 1040-7790; ISSN NHBFEE
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pressure-based viscous flow computation using multiblock overlapped curvilinear grids
An evaluation of parallel multigrid as a solver and a preconditioner for singular perturbed problems