Sayed A Banitabaei

9 Questions 17 Answers 0 Followers

Questions related from Sayed A Banitabaei

How to apply dynamic contact angle to a VOF problem?

I'm using VOF in Fluent to simulate impact of a falling droplet onto a solid particle in mid-air (pls see the picture). Instead of using a constant contact angle (CA), I want to apply a dynamic CA...

09 October 2017 6,565 3 View

How to calculate viscous dissipation in Fluent?

Using VOF ith a laminar model, I'm simulating collision of a droplet and a spherical particle. The particle moves very fast (~7 m/s) and so penetrates into the falling droplet and deforms it to a...

14 May 2017 2,125 3 View

Why "Mass Integral" calculates differently compared to "Mass"?

In a droplet impact onto a stationary particle, I want to calculate mass conservation of VOF method (before impact vs. after impact ends). For that, I use Reports => Volume Integrals window. In...

03 March 2017 8,345 6 View

Does Fluent realize the particle mass here?

I'm simulating droplet impact onto a moving particle (axisymmetric VOF+6DOF in dynamic mesh). I tried to increase the particle mass in UDF by a factor of 1000 (for the same particle size). But, as...

26 January 2017 2,261 3 View

Why do I see different behaviors from VOF model with and without dynamic refinement?

Hello all, I'm using Fluent for simulation of a droplet-particle impact problem. Droplet velocity is 0.7 m/s and particle moves in opposite direction with 7 m/s to make a head-on collision (I'm...

23 January 2017 1,485 4 View

How can I resolve this axisymmetric mesh problem?

I want to do an axisymmetric simulation of a head-on collision between a falling droplet and a spherical particle. However, as you can see in the attached figure, dynamic mesh fails to follow the...

10 January 2017 5,280 10 View

How to define mass of a particle in Fluent?

For simulating a droplet and particle collision, I assigned particle mass using 6DOF below and I defined particle velocity with 'Centre of Gravity Velocity' in 'dynamic mesh' window. As figure...

28 December 2016 211 7 View

How to assign an initial velocity to a moving wall in Fluent?

I'm simulating collision of a droplet and a moving particle in mid-air. The particle is launched towards the droplet while the drop is moving in opposite direction (pls. see Fig. 1)For solving...

20 November 2016 2,206 3 View

Is energy loss due to drag force included in the viscous dissipation?

An 8 m/s particle collides onto a falling droplet (0.8 m/s) as shown in Fig. 1. I need to write the energy balance equation. Kinetic energy of droplet and particle together before impact should be...

01 January 1970 1,218 10 View