Two step phase transition model of heat transfer in bath of subcooled superfluid helium

Cryogenics ◽  
1998 ◽  
Vol 38 (10) ◽  
pp. 1035-1038 ◽  
Author(s):  
R.Z. Wang ◽  
H. Kobayashi
Keyword(s):  
Heat Transfer ◽  
Phase Transition ◽  
Superfluid Helium ◽  
Transition Model

Hydrodynamics and heat transfer in superfluid helium

1982 ◽  
Vol 43 (4) ◽  
pp. 1172-1186 ◽  
Author(s):  
S. K. Nemirovskii
Keyword(s):  
Heat Transfer ◽  
Superfluid Helium

Fast forced liquid film spreading on a substrate: flow, heat transfer and phase transition

2010 ◽  
Vol 656 ◽  
pp. 189-204 ◽  
Author(s):  
ILIA V. ROISMAN
Keyword(s):  
Heat Transfer ◽  
Phase Transition ◽  
Stokes Equations ◽  
Substrate Surface ◽  
Reynolds Numbers ◽  
Drop Impact ◽  
Navier Stokes ◽  
Navier Stokes Equations ◽  
Theoretical Predictions ◽  
Viscous Drop

This theoretical study is devoted to description of fluid flow and heat transfer in a spreading viscous drop with phase transition. A similarity solution for the combined full Navier–Stokes equations and energy equation for the expanding lamella generated by drop impact is obtained for a general case of oblique drop impact with high Weber and Reynolds numbers. The theory is applicable to the analysis of the phenomena of drop solidification, target melting and film boiling. The theoretical predictions for the contact temperature at the substrate surface agree well with the existing experimental data.

scholarly journals A Theory for Wake-Induced Transition

1989 ◽  
Author(s):  
R. E. Mayle ◽  
K. Dullenkopf
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Turbulent Flow ◽  
Flat Plate ◽  
Free Stream ◽  
Plate Boundary ◽  
Transition Model ◽  
Model Comparisons ◽  
Turbulent Wakes ◽  
Flat Plate Boundary Layer

A theory for transition from laminar to turbulent flow as the result of unsteady, periodic passing of turbulent wakes in the free stream is developed using Emmons’ transition model. Comparisons made to flat plate boundary layer measurements and airfoil heat transfer measurements confirm the theory.

Analysis of a thermomechanical phase transition model

PAMM ◽  
2007 ◽  
Vol 7 (1) ◽  
pp. 1150805-1150806 ◽  
Author(s):  
Krzysztof CheÅ‚miński ◽  
Dietmar Hömberg ◽  
Daniela Kern
Keyword(s):  
Phase Transition ◽  
Transition Model

Heat Transfer from Thin Wires to Superfluid Helium under Reduced Gravity

1986 ◽  
pp. 499-504 ◽  
Author(s):  
Th. Gradt ◽  
Z. Szücs ◽  
H.-D. Denner ◽  
G. Klipping
Keyword(s):  
Heat Transfer ◽  
Superfluid Helium ◽  
Reduced Gravity ◽  
Thin Wires

scholarly journals Unsteady Boundary Layers on a Flat Plate Disturbed by Periodic Wakes: Part I — Measurement of Wake-Affected Heat Transfer and Wake-Induced Transition Model

1994 ◽  
Author(s):  
K. Funazaki
Keyword(s):  
Heat Transfer ◽  
Flat Plate ◽  
Rotating Disk ◽  
Circular Cylinders ◽  
Transition Model ◽  
Time Diagram ◽  
Test Conditions ◽  
Intermittency Factor ◽  
Unsteady Boundary Layers ◽  
Good Agreement

Measurements of wake-affected heat transfer distributions on a flat plate are made by use of a wake generator that consists of a rotating disk and several types of circular cylinders. The main purpose of this study is to construct a wake-induced transition model in terms of an intermittency factor, considering the evolution of the wake-induced turbulent region, a so-called turbulent patch in a distance-time diagram. A comparison between the proposed transition model and the measured heat transfer data reveals that the transition model yields good agreement with the measured data of all test conditions in this study.

Sign in / Sign up

Export Citation Format

Share Document