VMFL072

VMFL072
Liquid Water Flow Over a Flat Plate Under the Influence of Gravity

Overview

Reference

Roy, R.P. & Jain, S. (1989). A study of thin water film flow down an inclined plate without and with countercurrent air flow. Experiments in Fluids, (7) 318-328.

SolverAnsys Fluent
Physics/ModelsEulerian Wall Film
Input FileVMFL072_FLUENT.cas.h5
Project FilesLink to Project Files Download Page

Test Case

A water film Reynolds number of 417 and a plate inclination angle of 40° without counter current airflow are selected for the present study. The film is introduced as a mass flux boundary on the wall patch injection. Film thickness is calculated at a downstream location wall-monitor.

Figure 170: Flow Domain

Flow Domain

Material PropertiesGeometry Boundary Conditions.

Fluid domain is air while water-liquid is injected at the wall patch.

Dimensions of the domain:

500 mm x 100 mm x 100 mm

Injection width: 5 mm

Wall-monitor width: 50 mm

Mass Flux of Water-liquid

= 76.2 kg/m2-s

X-Gravitational Acceleration

= 6.305746 m/s2

Y-Gravitational Acceleration

= 0 m/s2

Z-Gravitational Acceleration

= -7.514896 m/s2

Analysis Assumptions and Modeling Notes

Air flow is zero, and the film flow is laminar.

Results Comparison for Ansys Fluent

Table 39: Comparison of Film Thickness

 Target Ansys FluentRatio
Film Thickness (mm)0.5550.54970.99