VMFL074

VMFL074
Modeling of a Plug Flow Atomizer

Overview

Reference	Bhamidipati, S., Panchagnula, M., Peddieson, J. (2008, January 3-5). Discrete population balance modeling of a plug flow atomizer [Paper presentation]. Heat and Mass Transfer Conference, Hyderabad, India.
Solver	Ansys Fluent
Physics/Models	Multi-phase, population balance model, turbulence
Input File	`VMFL074_FLUENT.cas.h5`
Project Files	Link to Project Files Download Page

Test Case

A plug flow atomizer is modeled using a discrete population balance, multi-phase model. The Ramkrishna method is used for the breakage kernel which is defined through a compiled udf.

Figure 173: Flow Domain

Material Properties	Geometry	Boundary Conditions
Air Phase Density: 1.225 kg/m3 Viscosity: 1.7894e-05 kg/m-s Water Phase Density: 998.2 kg/m3 Viscosity: 0.001003 kg/m-s	Inlet = 0.145 m Outlet = 0.145 m Domain Length = 2 m	Inlet Velocity = 0.01 m/s

Material Properties

Geometry

Boundary Conditions

Air Phase

Density: 1.225 kg/m3

Viscosity: 1.7894e-05 kg/m-s

Water Phase

Density: 998.2 kg/m3

Viscosity: 0.001003 kg/m-s

Inlet = 0.145 m

Outlet = 0.145 m

Domain Length = 2 m

Inlet Velocity = 0.01 m/s

Analysis Assumptions and Modeling Notes

A steady turbulent flow is assumed. Ansys Fluent's simulation results are compared to an analytical solution.

Results Comparison for Ansys Fluent

Figure 174: Comparison of Number Density of bin-2 Fraction

Figure 175: Comparison of Number Density of bin-5 Fraction