Thermal Distributions in Jeffery-Hamel Flows Between Nonparallel Plane Walls

1953 ◽  
Vol 20 (3) ◽  
pp. 187-196 ◽  
Author(s):  
KNOX MILLSAPS ◽  
KARL POHLHAUSEN
Keyword(s):  
Nonparallel Plane

Distance difference and linear programming nonparallel plane classifier

2011 ◽  
Vol 38 (8) ◽  
pp. 9425-9433 ◽  
Author(s):  
Qiaolin Ye ◽  
Chunxia Zhao ◽  
Haofeng Zhang ◽  
Ning Ye
Keyword(s):  
Linear Programming ◽  
Distance Difference ◽  
Nonparallel Plane

Nonparallel plane proximal classifier

2009 ◽  
Vol 89 (4) ◽  
pp. 510-522 ◽  
Author(s):  
Santanu Ghorai ◽  
Anirban Mukherjee ◽  
Pranab K. Dutta
Keyword(s):  
Nonparallel Plane

A closed-form contact model for gas face seals during the opened operation

2018 ◽  
Vol 70 (6) ◽  
pp. 1110-1118 ◽  
Author(s):  
Songtao Hu ◽  
Noel Brunetiere ◽  
Weifeng Huang ◽  
Xi Shi ◽  
Zhike Peng ◽  
...  
Keyword(s):  
Closed Form ◽  
Rotor Dynamics ◽  
Contact Model ◽  
Strong Impact ◽  
Face Seal ◽  
Content Type ◽  
Face Seals ◽  
The Face ◽  
Nonparallel Plane ◽  
Gas Face Seal

Purpose Face contact has a strong impact on the service life of non-contacting gas face seals; the current research which mainly focuses on the face contact had appeared during the startup or shutdown operation. This paper aims to present a closed-form contact model of a gas face seal during the opened operation. Design/methodology/approach Referring to the axial rub-impact model of rotor dynamics, a closed-form contact model is developed under a nonparallel plane contact condition that corresponds to the local face contact of sealing rings arising from some disturbances during the opened operation. The closed-form contact model and a direct numerical contact model are performed on Gaussian surfaces to compare the contact behavior. Findings The closed-form contact model is in a good agreement with the direct numerical contact model. However, the closed-form contact model cannot involve the influence of grooves on the sealing ends. The error is eliminated in some other types of gas face seals such as coned gas face seals. Besides non-contacting face seals, the closed-form model can be applied to the axial rub impact of rotor dynamics. Originality value A closed-form contact model of a gas face seal is established during the opened operation. The closed-form contact model is validated by a direct numerical contact model. The closed-form contact model also suits for axial rub-impact of rotor dynamics.

Newton's method for nonparallel plane proximal classifier with unity norm hyperplanes

2010 ◽  
Vol 90 (1) ◽  
pp. 93-104 ◽  
Author(s):  
Santanu Ghorai ◽  
Shaikh Jahangir Hossain ◽  
Anirban Mukherjee ◽  
Pranab K. Dutta
Keyword(s):  
Newton’S Method ◽  
Newton's Method ◽  
Nonparallel Plane
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