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Analysis of unsteady flow forces on the thermowell of steam temperature sensor

刊名：	Transactions of the Institute of Fluid-Flow Machinery
作者：	SEBASTIAN KORNET（Energy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences） DANIEL SLAWINSKI（Energy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences） PAWEL ZIOLKOWSKI（Energy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences） JANUSZ BADUR（Energy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences）
刊号：	780LH005
ISSN：	0079-3205
出版年：	2015
年卷期：	2015, no.129
页码：	25-49
总页数：	25
分类号：	TH
关键词：	Unsteady flow；Resonance；CFD modeling；CSD modeling
参考中译：
语种：	eng
文摘：	In this paper, 3D numerical analysis of unsteady flow forces acting on the thermowell of steam temperature sensor is presented. According to that purpose, the CFD+CSD (computational fluid-solid dynamics) approach has been used. The nonstationary of fluid acting on the thermowell such as: Strouhal frequency, amplitude of pressure, structure of vortex, peak of pressure, field of pressure, field of velocity, etc. are studied analytically and numerically. There have been examined two cases of flow with changing both temperature, pressure and mass flow rate (operating daily and night in the unit with capacity of 380 MWe). In accordance with the standards ASME PTC 19.3 TW-2010 the possibility of entry into resonance has been examined.