Explanipedia

Multi-Flow Falling Particle Receiver Modeling Open

Ahmed Mohamed, Gowtham Mohan, Peter Vorobieff, Nathan E. Schroeder · 2025

Generation 3 Concentrating Solar Power systems use solid particles for heat transfer and thermal energy storage. Particle-based systems use a falling particle receiver with an open cavity where particles flow together as a curtain that is …

Experimental Study of a Novel Semi-Transparent Bi-Facial Agri-Voltaic System: Initial Results Open

Duncan McGraw, Tonny Nyonga, Laura Green, Peter Vorobieff, David Hanson , et al. · 2025

Solar (photovoltaic)-agriculture practices have experienced notable progress across several countries over the past few decades, creating a field widely known as agrivoltaics. This co-location practice has proved effective for certain crop…

Development of a novel method to characterize shock waves interaction with solid objects Open

Mohammad Mosiur Rahman, Ahmed Mohamed, Alexander Sweis, Joshua Chavez, Peter Vorobieff · 2024

Nuclear explosion in a densely populated area is the worst that can happen to any country in the world due to enormous loss of life, property and severe economic damage. Nuclear explosions immediately cause radiological damage and destruct…

Development of a Novel Method to Characterize Shock Waves Interaction With Solid Objects Open

Mohammad Mosiur Rahman, Ahmed Mohamed, Alexander Sweis, Joshua Chavez, Peter Vorobieff · 2024

Nuclear explosion in a densely populated area is the worst that can happen to any country in the world due to enormous loss of life, property and severe economic damage. Nuclear explosions immediately cause radiological damage and destruct…

GAS CURTAIN EXPERIMENTAL TECHNIQUE AND ANALYSIS METHODOLOGIES. Open

James R. Kamm, William J. Rider, Paul Rightley, Kathy Prestridge, R. F. Benjamin , et al. · 2024

The qualitative and quantitative relationship of numerical simulation to the physical phenomena being modeled is of paramount importance in computational physics. If the phenomena are dominated by irregular (i.e., nonsmooth or disordered) …

QUANTITATIVE CHARACTERIZATION OF ADVECTIVE LOSSES IN A FALLING PARTICLE RECEIVER Open

Guillermo Anaya, Clifford K. Ho, Jesus D. Ortega, Peter Vorobieff · 2023

Concentrating solar power receivers use a thermal medium for energy storage.For falling particle receivers, ceramic particles are used both as the thermal storage and transfer medium.Inside the receiver described here, a gravity-driven par…

Statistical characterization of a shock interacting with an inclined gas column Open

Brian Romero, Jon Reisner, Peter Vorobieff, Svetlana Poroseva · 2023

We present a statistical characterization of the interaction between a planar shock and a finite-diameter, cylindrical column of dense gas based on three-dimensional, large-eddy simulation results. In the simulation, the column of gas is i…

Characterization of Particle and Heat Losses from a High-Temperature Particle Receiver (2<sup>nd</sup> Ed) Open

Clifford K. Ho, Jesus D. Ortega, Peter Vorobieff, Gowtham Mohan, Andrew G. Glen , et al. · 2022

High - temperature particle receivers are being pursued to enable next - generation concentrating solar thermal power (CSP) systems that can achieve higher temperatures (> 700 C) to enable more efficient power cycles, lower overall system …

A simple and fast matlab-based particle size distribution analysis tool Open

Jesus D. Ortega, Irma R. Vazquez, Peter Vorobieff, Clifford K. Ho · 2021

Particle size distribution is one of the most important physical properties of a particulate sample.Traditional particle-sizing methods to estimate a geometrical particle size distribution employ a sieve analysis (or gradation test), which…

Spherical particle migration evaluation in low reynolds number couette flow using smooth profile method Open

Mahyar Pourghasemi, Nima Fathi, Peter Vorobieff, Goodarz Ahmadi, Seyed Sobhan Aleyasin , et al. · 2021

An Eulerian-Lagrangian model is developed to investigate the solid particle migration in low Reynolds number shear flows between two parallel plates.A continuous kernel function with a predefined thickness is applied in the implemented num…

THREE-DIMENSIONAL VALIDATION EXERCISE FOR FIESTA CODE: EVOLUTION OF SHOCK-DRIVEN INSTABILITIES Open

Brian Romero, Peter Vorobieff, Svetlana Poroseva, Jon Reisner · 2021

In this paper, we present simulation results for the three-dimensional, shock-driven Kelvin-Helmholtz instability.Simulations are performed with a Mach 2.0 shock propagating through a finite-diameter cylindrical column of dense gas incline…

Characterization of Particle and Heat Losses from a High-Temperature Particle Receiver Open

Clifford K. Ho, Jesus D. Ortega, Peter Vorobieff, Gowtham Mohan, Andrew G. Glen , et al. · 2021

High-temperature particle receivers are being pursued to enable next-generation concentrating solar thermal power (CSP) systems that can achieve higher temperatures (> 700 °C) to enable more efficient power cycles, lower overall system cos…

Simulations of the shock-driven Kelvin–Helmholtz instability in inclined gas curtains Open

Brian Romero, Svetlana Poroseva, Peter Vorobieff, Jon Reisner · 2021

In this paper, we present simulation results for the two-dimensional, shock-driven Kelvin–Helmholtz instability. Simulations are performed with a Mach 2.0 shock propagating through a finite-thickness curtain of gas inclined at an angle α0=…

TRANSPORT OF A SINGLE SPHERICAL PARTICLE IN LOW REYNOLDS NUMBERS’ LINEAR SHEAR FLOWS: EXPERIMENT AND MODELING Open

Peter Vorobieff, Nima Fathi, Seyed Sobhan Aleyasin, Goodarz Ahmadi · 2020

Trajectories of a buoyant spherical solid particle in a linear shear flow were investigated at low Reynolds numbers.A two-dimensional CFD analysis was performed to simulate the solid-fluid flow.Our numerical model uses the discrete phase e…

Instrumentation Laboratory: Challenges of Teaching a Large Class Open

Miquela Trujillo, Peter Vorobieff, Francisco M. Vigil, Tennille Bernard, Clinton Corbin · 2020

Instrumentation Laboratory: Challenges of Teaching a Large Class Keyword: instrumentation, engineering education, diagnostics, laboratoryAbstractRegardless of the exact job description and duties, for every engineer, it is essential to und…

Investigation of Mixing Law Efficacy for Gaseous Hydrodynamic Simulations Open

Caleb White, Humberto Silva, Peter Vorobieff · 2020

A computational simulation of various mixing laws for gaseous equations of state using planar traveling shocks for multiple mixtures in three dimensions is analyzed against nominal experimental data. Numerical simulations utilize the Sandi…

Investigation of Mixing Law Efficacy for Hydrodynamic Simulations and Associated Compressibility Implications (Poster). Open

Caleb White, Caleb White, Humberto Silva, Humberto Silva, Peter Vorobieff , et al. · 2020

Characterization of Particle and Heat Losses from Falling Particle Receivers (paper). Open

Clifford K. Ho, Sean Kinahan, Jesus D. Ortega, Peter Vorobieff, Andrea Mammoli , et al. · 2020

Dalton’s and Amagat’s laws fail in gas mixtures with shock propagation Open

Patrick Wayne, Sean P. Cooper, Dylan Simons, Ignacio Trueba-Monje, Daniel Freelong , et al. · 2019

We present an experimental study of a fundamental case where gas mixture models fail: shock propagation through a gas mixture.

Formation of a falling particle curtain Open

Peter Vorobieff, Patrick Wayne, Sumanth Reddy Lingampally, Gregory Vigil, Josh Ludwigsen , et al. · 2019

USING THE SOLAR SPLASH COMPETITION TO TRAIN THE NEW GENERATION OF MARITIME ENGINEERS IN SOLAR POWER USE Open

Peter Vorobieff, Jane Lehr · 2019

We present a program (UNM Solar Splash) developed at the University of New Mexico with the goal of training engineering students in building solar-powered watercraft.The program is run as a hybrid between a senior design capstone course an…

Investigation of Mixing Law Efficacy for Hydrodynamic Simulations and Associated Compressibility Implications Open

Caleb White, Humberto Silva, Peter Vorobieff · 2019

Experimental and computational investigation of single particle behavior in low Reynolds number linear shear flows Open

Nima Fathi, Seyed Sobhan Aleyasin, Peter Vorobieff, Goodarz Ahmadi · 2019

Trajectories of a buoyant spherical solid particle in a linear shear flow were investigated at low Reynolds numbers. A two-dimensional CFD analysis was performed to simulate the solid-fluid flows. Our numerical model, the discrete phase el…

Interaction of Wind Turbine Wakes under Various Atmospheric Conditions Open

Sang Lee, Peter Vorobieff, Svetlana Poroseva · 2018

We present a numerical study of two utility-scale 5-MW turbines separated by seven rotor diameters. The effects of the atmospheric boundary layer flow on the turbine performance were assessed using large-eddy simulations. We found that the…

Effective particle size from molecular dynamics simulations in fluids Open

Jianwei Jü, Paul M. Welch, K. Ø. Rasmussen, Antonio Redondo, Peter Vorobieff , et al. · 2017

Here, we report molecular dynamics simulations designed to investigate the effective size of colloidal particles suspended in a fluid in the vicinity of a rigid wall where all interactions are defined by smooth atomic potential functions. …

Instabilities in a shock interaction with a perturbed curtain of particles Open

Ricardo González Izard, Sumanth Reddy Lingampally, Patrick Wayne, Gustaaf B. Jacobs, Peter Vorobieff · 2017

We present a two-dimensional computational study of a shock interaction with a particle-seeded curtain where particles initially comprise 4% by volume, and the rest is air.If the initial depth of the curtain in the streamwise direction is …

Investigation of Dalton and Amagat’s laws for gas mixtures with shock propagation Open

Patrick Wayne, Sean P. Cooper, Dylan Simons, Ignacio Trueba Monje, Jae Hwun Yoo , et al. · 2017

Dalton's and Amagat's laws (also known as the law of partial pressures and the law of partial volumes respectively) are two well-known thermodynamic models describing gas mixtures. We focus our current research on determining the suitabili…

MIXING-MODEL SENSITIVITY TO INPUT PARAMETER VARIATION Open

Josiah Bigelow, Humberto Silva, C. Randall Truman, Peter Vorobieff · 2017

Amagat and Dalton mixing-models were analyzed to compare their thermodynamic prediction of shock states.Numerical simulations utilized the Sandra National Laboratories (SNL) shock hydrodynamic code CTH [1].Simulations modeled the Universit…

Shock-driven transition to turbulence: Emergence of power-law scaling Open

Dell Olmstead, Patrick Wayne, Dylan Simons, Ignacio Trueba Monje, Jae-Hwun Yoo , et al. · 2017

Here, we consider two cases of interaction between a planar shock and a cylindrical density interface. In the first case (planar normal shock), the axis of the gas cylinder is parallel to the shock front and baroclinic vorticity deposited …

Experimental study of shock-accelerated inclined heavy gas cylinder Open

Dell Olmstead, Patrick Wayne, Jae-Hwun Yoo, Sanjay Kumar, C. Randall Truman , et al. · 2017

Peter Vorobieff YOU? Author Swipe