Three dimensional DNS simulation on the fluid flow over a forward step configuration are compared with the experiments reported by Shakouchi, Ando, and Ito. This is a part of authors’ attempts to evaluate the validity of three dimensional unsteady flow simulation by comparison to experiments. Summary of the comparison is as follows: (1) vortex shedding in the flow separation over the top of the step near the corner is observed, (2) frequency of vortex shedding and distance between two consecutive vortices do not agree with the experiment, (3) however, while steady periodic shedding of vortices from the top corner of the step is reported for the experimental results, the computational results show unsteady behavior of the flow over the top corner, which results in unsteady shedding of vortices. This unsteadiness in the computational simulation is due to unsteady motion of fluid upstream from the step where adverse pressure increase occurs.
Skip Nav Destination
ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
July 6–10, 2003
Honolulu, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3697-5
PROCEEDINGS PAPER
Comparison of CFD Simulation to the Experiments for Forward Step Flows Available to Purchase
Shoichiro Nakamura,
Shoichiro Nakamura
Ohio State University, Columbus, OH
Search for other works by this author on:
Hiroyuki Onuma,
Hiroyuki Onuma
Ibaraki University, Hitachi, Ibaraki, Japan
Search for other works by this author on:
Peter G. Carswell
Peter G. Carswell
Ohio Supercomputer Center, Columbus, OH
Search for other works by this author on:
Shoichiro Nakamura
Ohio State University, Columbus, OH
Hiroyuki Onuma
Ibaraki University, Hitachi, Ibaraki, Japan
Peter G. Carswell
Ohio Supercomputer Center, Columbus, OH
Paper No:
FEDSM2003-45474, pp. 1055-1060; 6 pages
Published Online:
February 4, 2009
Citation
Nakamura, S, Onuma, H, & Carswell, PG. "Comparison of CFD Simulation to the Experiments for Forward Step Flows." Proceedings of the ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Volume 2: Symposia, Parts A, B, and C. Honolulu, Hawaii, USA. July 6–10, 2003. pp. 1055-1060. ASME. https://doi.org/10.1115/FEDSM2003-45474
Download citation file:
7
Views
Related Proceedings Papers
Related Articles
Investigation of Unsteady Flow Phenomena in First Vane Caused by Combustor Flow With Swirl
J. Turbomach (April,2017)
Hybrid RANS/LES Simulation of Corner Stall in a Linear Compressor Cascade
J. Turbomach (August,2018)
Related Chapters
Antilock-Braking System Using Fuzzy Logic
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Cavitating Structures at Inception in Turbulent Shear Flow
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
List of Commercial Codes
Introduction to Finite Element, Boundary Element, and Meshless Methods: With Applications to Heat Transfer and Fluid Flow