Title:	Large Eddy Simulation (LES) of SEFACE and CTF for Flow Accelerated Corrosion and Erosion Study in Liquid Lead
DNr:	SNIC 2022/5-483
Project Type:	SNIC Medium Compute
Principal Investigator:	Pavel Kudinov <pkudinov@kth.se>
Affiliation:	Kungliga Tekniska högskolan
Duration:	2022-10-25 – 2023-11-01
Classification:	20306
Homepage:	https://www.physics.kth.se/ne/sunrise
Keywords:

Abstract

To the development of multiphysics model to simulate flow-accelerated corrosion and erosion process in the liquid lead, it is crucial to obtain time-dependent information including wall shear stress amplitude and frequencies, such that these pieces of information can be coupled to study turbulence-induced fatigue erosion and obtain lifetime prediction of components as an ultimate goal. Two liquid lead based facilities are currently being designed, the SEFACE and CTF. Due to the sizing of the SEFACE and CTF facilities and the relatively high rotational speed during operation, the linear Reynolds number will be between ~1 to ~10 million. The current proposal attempts to resolve the near-wall turbulence structure in both SEFACE and CTF test chambers through both the standard wall-adaptive LES model (WALE) with a strict y+ requirement; and also the wall-modeled LES model (WMLES) where a more relaxed wall refinement can be used. The information obtained from these simulations will be used to support the model development.