Stability analysis of heated thin liquid-film flows with constant thermal boundary conditions

1999 ◽  
Vol 16 (6) ◽  
pp. 764-773 ◽  
Author(s):  
Hyo Kim
Keyword(s):  
Stability Analysis ◽  
Boundary Conditions ◽  
Liquid Film ◽  
Thin Liquid Film ◽  
Thermal Boundary Conditions ◽  
Film Flows

Stability Analysis of Ultra-thin Liquid Film Surface : Influence of Boundary with Nanometer Spacing

2004 ◽  
Vol 2004.42 (0) ◽  
pp. 409-410
Author(s):  
Daigou AKASAKA ◽  
Kazuya YORINO ◽  
Hiroshige MATSUOKA ◽  
Shigehisa FUKUI
Keyword(s):  
Stability Analysis ◽  
Liquid Film ◽  
Thin Liquid Film ◽  
Film Surface

One-Dimensional Analysis of the Hydrodynamic and Thermal Characteristics of Thin Film Flows Including the Hydraulic Jump and Rotation

1990 ◽  
Vol 112 (3) ◽  
pp. 728-735 ◽  
Author(s):  
S. Thomas ◽  
W. Hankey ◽  
A. Faghri ◽  
T. Swanson
Keyword(s):  
Liquid Film ◽  
Solid Body ◽  
Hydraulic Jump ◽  
Radial Flow ◽  
Thin Liquid Film ◽  
Thermal Characteristics ◽  
Rotating Disk ◽  
Body Rotation ◽  
Solid Body Rotation ◽  
Film Flows

The flow of a thin liquid film with a free surface along a horizontal plate that emanates from a pressurized vessel is examined numerically. In one g, a hydraulic jump was predicted in both plane and radial flow, which could be forced away from the inlet by increasing the inlet Froude number or Reynolds number. In zero g, the hydraulic jump was not predicted. The effect of solid-body rotation for radial flow in one g was to “wash out” the hydraulic jump and to decrease the film height on the disk. The liquid film heights under one g and zero g were equal under solid-body rotation because the effect of centrifugal force was much greater than that of the gravitational force. The heat transfer to a film on a rotating disk was predicted to be greater than that of a stationary disk because the liquid film is extremely thin and is moving with a very high velocity.

Hydromagnetic Stability Analysis of a Film Coating Flow Down a Rotating Vertical Cylinder

2011 ◽  
Vol 27 (1) ◽  
pp. 27-36 ◽  
Author(s):  
P.-J. Cheng ◽  
K.-C. Liu ◽  
D. T. W. Lin
Keyword(s):  
Liquid Film ◽  
Thin Liquid Film ◽  
Vertical Cylinder ◽  
Film Coating ◽  
Rossby Number ◽  
Free Film ◽  
Coating Flow ◽  
The Stability ◽  
Film Flows ◽  
The Magnetic Field

ABSTRACTThe influence of both the Rossby number and the Hartmann number on the hydromagnetic stability of a thin liquid film flowing down along the surface of a vertical cylinder is investigated. The long-wave perturbation method is employed to solve for generalized nonlinear kinematic equations with a free film interface. The normal mode approach is used to compute the stability solution for the film flow. The modeling results indicate that the stability of the liquid film is enhanced by increasing the strength of the magnetic field or reducing the speed at which the cylinder rotates. By contrast, the flow becomes relatively more unstable as the cylinder radius is increased at larger values of the Rossby number. Notably, this finding is the opposite of that observed for film flows along a stationary vertical cylinder.

Sign in / Sign up

Export Citation Format

Share Document