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- Title
Numerical Analysis on Unsteady Cavitation by Direct Interface Tracking Approach.
- Authors
Katsutoshi ISHIKAWA; Yutaka UMEMURA; Takehiro HIMENO; Toshinori WATANABE; Naoki TANI; Hiroshi TERASHIMA; Mitsuo KOSHI
- Abstract
Cavitation may cause a severe damage to rocket engine turbo-pump, and appropriate handling of cavitation is one of the key technologies for rocket engine development. Numerical simulation is quite useful technique, however, simulation result strongly relies on cavitation model. Cavitation flow is essentially strong unsteady and multi scale phenomena, scales of bubbles vary in size from small to large. Therefore, prediction of cavitation by numerical simulation is difficult. Many cavitation models have been proposed and researched. However, direct interface tracking approach has not been applied to cavitating flow and the model characteristic is not fully understood. This research shows direct interface tracking method can properly capture both cloud cavitation and super cavitation and grid resolution affects lift coefficient.
- Subjects
CAVITATION; MATHEMATICAL models; NUMERICAL analysis; HYDROFOILS; PRESSURE drop (Fluid dynamics); PERFORMANCE of axial flow pumps
- Publication
Transactions of the Japan Society of Aeronautical & Space Sciences, Aerospace Technology Japan, 2014, Vol 12, Issue ists 29, p63
- ISSN
1884-0485
- Publication type
Article