Implementation of the superfluid helium phase transition using finite element modeling: Simulation of transient heat transfer and He-I/He-II phase front movement in cooling channels of superconducting magnets

Cryogenics ◽  
2013 ◽  
Vol 53 ◽  
pp. 78-85
Author(s):  
E.R. Bielert ◽  
A.P. Verweij ◽  
H.H.J. Ten Kate
Keyword(s):  
Heat Transfer ◽  
Phase Transition ◽  
Finite Element ◽  
Superfluid Helium ◽  
Superconducting Magnets ◽  
Phase Front ◽  
Cooling Channels ◽  
Modeling Simulation ◽  
Finite Element Modeling Simulation ◽  
Front Movement

Piston Finite Element Modeling for the Estimation of Hydrodynamic and Contact Forces and Moments

2006 ◽  
Author(s):  
Andreas P. Panayi ◽  
Harold J. Schock
Keyword(s):  
Finite Element ◽  
Internal Combustion Engine ◽  
Finite Element Modeling ◽  
Mechanical Behavior ◽  
Combustion Engine ◽  
Contact Forces ◽  
Element Modeling ◽  
Modeling Simulation ◽  
Finite Element Modeling Simulation ◽  
Cylinder Bore

Modeling the thermal and mechanical behavior of a piston is crucial, as it allows for the evaluation of piston performance including piston dynamics and friction. These characteristics directly affect the efficiency, reliability, and lifespan of an internal combustion engine. This work migrates from the conventional parameterized piston modeling approach and uses a full CAD finite element modeling simulation for the evaluation of the piston’s thermal and mechanical behavior as well as the resultant hydrodynamic and contact forces and moments experienced by it. The analysis is performed for two different piston to cylinder bore nominal clearances, and for one of them at two different engine speeds, while assuming the piston is moving at the center of the cylinder bore with no transverse or tilting motion.

Sign in / Sign up

Export Citation Format

Share Document