Related Experiment Video
Updated: Aug 22, 2025

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions
Published on: February 17, 2019
A Conservative Level Set Approach to Non-Spherical Drop Impact in Three Dimensions
Xu Pan1, Ying Wang1, Mingguang Shen2
1Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, Nanjing 211189, China.
This study simulates non-spherical droplet impact using a conservative level set model and Navier-Stokes equations. The research explores aspect ratio effects on splashing dynamics and proposes an empirical correlation for maximum spread factor.
Area of Science:
- Fluid Dynamics
- Computational Physics
Background:
- Simulating droplet impact is crucial for understanding various physical phenomena.
- Non-spherical droplet dynamics present unique challenges compared to spherical ones.
Purpose of the Study:
- To develop and validate a computational model for three-dimensional non-spherical droplet impact.
- To investigate the influence of aspect ratio on droplet splashing dynamics.
- To propose an empirical correlation for the maximum spread factor.
Main Methods:
- Employed a conservative level set model coupled with Navier-Stokes equations.
- Utilized a central difference scheme for the advection term and a projection method for pressure-velocity coupling.
- Developed in-house Fortran code with OpenMP for parallel processing.
Main Results:
- Validated the model against experimental data, achieving good qualitative and quantitative agreement.
- Investigated the impact and splashing of non-spherical droplets, focusing on aspect ratio effects.
- Proposed an empirical correlation for the maximum spread factor and found agreement with theoretical models for satellite droplet formation.
Conclusions:
- The developed model accurately simulates non-spherical droplet impact and splashing.
- Aspect ratio significantly influences droplet impact dynamics.
- The proposed empirical correlation provides a useful tool for predicting droplet behavior.
More Related Videos
07:30A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
Published on: September 21, 2017
07:49Development of an Experimental Setup for the Measurement of the Coefficient of Restitution under Vacuum Conditions
Published on: March 29, 2016
Related Concept Videos
Impact: Problem Solving
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...
Impact
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
Types of Impact
The coefficient of restitution is a metric for understanding the dynamics of impacts. It quantifies the ratio of relative velocity...
Collisions in Multiple Dimensions: Introduction
Impact Loading
In cases of elastic deformation,...
Conservation of Mass in Fixed, Nondeforming Control Volume
In the case of a sewer pipe, which can be modeled...