Numerical predictions of free convective heat transfer from vertical surfaces to fluids in the near-critical region
Abstract
A numerical solution is carried out for heat transfer to fluids in the near-critical region for laminar free convective flow from an isothermal vertical surface. The Patankar-Spalding implicit finite difference scheme is used to solve the boundary layer equations. Predictions made are compared with the available experimental data. Based on the numerical predictions for water and carbon-dioxide, empirical correlations are proposed to evaluate the local heat transfer coefficient for a wide range of Rayleigh numbers (bulk-fluid Rayleigh numbers of 10 million to 100 billion).
- Publication:
-
4th National Heat and Mass Transfer Conference
- Pub Date:
- 1978
- Bibcode:
- 1978nhmt.conf..273S
- Keywords:
-
- Boundary Layer Equations;
- Convective Heat Transfer;
- Critical Point;
- Free Convection;
- Numerical Analysis;
- Carbon Dioxide;
- Finite Difference Theory;
- Flat Plates;
- Heat Transfer Coefficients;
- Laminar Flow;
- Numerical Integration;
- Rayleigh Number;
- Vertical Distribution;
- Water;
- Fluid Mechanics and Heat Transfer