학술논문

Numerical Analysis on Cavitation Inside the Nozzle with Bubble Nucleation Model / 気泡核生成モデルを考慮したノズル内キャビテーションに関する数値解析
Document Type
Journal Article
Source
自動車技術会論文集 / Transactions of Society of Automotive Engineers of Japan. 2017, 48(3):745
Subject
Cavitation model
Computational fluid dynamics
Engine
Erosion
Heat・fluid
Superheating degree
Language
Japanese
ISSN
0287-8321
1883-0811
Abstract
The atomization phenomena of the fuel spray are known to be affected by flow conditions and cavitation inside the nozzle hole. Generally, it is known that bubble nuclear number increases with the increase in superheating degree on the liquid. So, the defining equation of cavitation inception is extremely important. In this report, bubble nucleation model was incorporated in commercial code of Star-CCM+ scheme which set bubble nuclear number of uniformity. And it was verified that the increase of bubble nuclear number affect the energy generated with cavitation bubble collapse.