Affiliation:
1. Aerospace Research Institute
Abstract
To improve the calculation of the flow properties of an aerospike nozzle, different turbulent models are studied in this research. The primary shape of the nozzle and the plug is determined through utilizing an approximate method. The flow field is then simulated using Navier-Stokes equations for compressible flow. The computational methodology utilizes steady state density-based formulation and a finite volume cell centered scheme to discretize the flow field equations. To accelerate the solution convergence, the flow field is divided into several zones. Each zone is facilitated with proper unstructured grid and appropriate initial conditions are implemented to each zone. The accuracy and the robustness of wall function based turbulence models i.e. standard and RNG k-ε models are compared with those of Spalart-Allmaras (S-A) and k-ω turbulence models.
Publisher
Trans Tech Publications, Ltd.
Reference15 articles.
1. T. Ito, K. Fujii and A.K. Hayashi, Computations of the Axisymmetric Plug Nozzle Flow Fields, , AIAA Paper 99-3211, (1999).
2. T. Tomita, H. Tamura, and M. Takahashi, An Experimental Evaluation of Plug Nozzle Flow Fields, , AIAA Paper 96-2632, (1996).
3. T. Tomita, M. Takahashi and H. Tamura, Flow Field of Clustered Plug Nozzles, , AIAA Paper 97-3219, (1997).
4. T. Tomita, M. Takahashi , T. Onodera, and H. Tamura, Effects of Base Bleed on Thrust Performance of a Linear Aerospike Nozzle, , AIAA Paper 99-2586, (1999).
5. T. Onodera, T. Tomita, and H. Tamura, Numerical Investigation of the Flow Field around Linear Aerospike Nozzles, AIAA Paper 99-2588, (1999).