Publications

Mar, 2026

Conference Paper

Numerical Study of Liquid Piston Compression Using Large-Eddy Simulation and Volume-of-Fluid Approach

Efforts to increase the efficiency of residential and commercial air conditioners and heat pumps have demonstrated that the compressor accounts for most of the system’s electrical energy usage. Therefore, the efficiency of this component should be improved to reduce its energy usage. The US Department of Energy’s Oak Ridge National Laboratory developed a near-isothermal li…

Dec, 2025

ORNL Report

Aerosol and Gas Transport in Ventilation Ducts in Nonreactor Nuclear Facilities — Enhanced Numerical Models and On-Site Measurements for Model Validation

This document summarizes outcomes and findings from a project sponsored by the Nuclear Safety Research and Development Program, which is managed by the Office of Nuclear Safety, within the Office of Environment, Health, Safety and Security.

Dec, 2025

ORNL Report

Addressing Critical Challenges of Coal Mines for Underground Pumped Storage Hydropower Using Numerical Calculations

Using existing coal mines to build underground pumped storage hydropower (UPSH) power plants could help reduce the costs associated with starting a new PSH operation. This innovative approach can leverage the existing infrastructure of coal mine facilities available in many regions of the United States. However, technical challenges associated with water quality, mineral c…

Sep, 2025

Journal

Multimode turbulent flow measurements using magnetic resonance imaging- and laser-based techniques and computational fluid dynamics simulations

In this paper, we study the flow field characteristics of a turbulent flow over a regularized cube array with a perpendicular injection flow through the floor between the second and third cubic, representing a complex flow interactions of a three-dimensional jet and wake flows behind cubical obstacles. Four different experimental measurements were performed featuring two m…

Oct, 2024

ORNL Report

CRADA NFE-23-09836 Final Report – Isothermal Compressor Computational Fluid Dynamics Simulations – Lambda Design

Oct, 2024

ORNL Report

Aerosol and Gas Transport in Ventilation Ducts in Non-Reactor Nuclear Facilities

Sep, 2024

Journal

Investigation of Point-Contact Strategies for CFD Simulations of Pebble-Bed Reactor Cores

This study numerically investigated the effects of various contact strategies on the thermal hydraulic behavior within a structured bed of 100 explicitly modeled pebbles. Four contact strategies and two thermal hydraulic conditions were considered. The strategies to avoid contact singularities include decreasing the pebble diameter, increasing the pebble diameter, bridging…

Aug, 2024

ORNL Report

CRADA NFE-22-09321 Final Report – Isothermal Compressor Computational Fluid Dynamics Simulations

Aug, 2024

ORNL Report

Liquid piston with spray cooling near-isothermal compressor

Feb, 2024

Journal

Ultrasonic Nondestructive Diagnosis of Cylindrical Batteries Under Various Charging Rates

Lithium-ion batteries have been used increasingly as electrochemical energy storage systems for electronic devices and vehicles. It is important to accurately estimate the state of charge (SoC) of a battery management system to control the battery operation to optimize performance, lifetime, and safety. The current work experimentally leverages ultrasonic diagnostic techno…

Feb, 2024

ORNL Report

Design of Instrumentation for Noble Gas Transport in LSTL Needed for Model Development

Dec, 2023

Conference Paper

Numerical Study of Fission Particle Transport in Ventilation Ducts in Nonreactor Nuclear Facilities: Case Study of Circular and Square Ducts with T-Junctions