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Journal Articles

Data-Guided Low-Reynolds-Number Corrections for Two-Equation Models

Xiaohan Hu, George Huang, Robert Kunz, Xiang Yang
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2025, 147(2): 021502.
Paper No: FE-24-1237
https://doi.org/10.1115/1.4066642
Published Online: October 23, 2024
View Article titled, Data-Guided Low-Reynolds-Number Corrections for Two-Equation Models
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Topics: Boundary layers, Flow (Dynamics), Pressure gradient, Skin friction (Fluid dynamics), Energy dissipation, Polishing equipment, Pressure, Reynolds number, Viscosity, Eddies (Fluid dynamics)
Proceedings Papers

A Data-Based One-Layer Formulation of the Two-Equation RANS Models

Xiaohan Hu, George Huang, Robert Kunz, Xiang Yang
Proc. ASME. FEDSM2024, Volume 2: Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC); Flow Visualization, V002T05A012, July 15–17, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2024-130697
https://doi.org/10.1115/FEDSM2024-130697
View Paper titled, A Data-Based One-Layer Formulation of the Two-Equation RANS Models
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Topics: Boundary layers, Computer simulation, Energy dissipation, Flat plates, Flow (Dynamics), Polishing equipment, Pressure, Pressure gradient, Reynolds-averaged Navier–Stokes equations, Skin friction (Fluid dynamics)
Proceedings Papers

An Additively Manufactured Small Footprint Wind Tunnel for Wall Jet and Particle Scavenging Studies

Jiaxuan Wang, Abrar Ul Karim, Tamy Guimarães, Robert Kunz
Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A033, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-116730
https://doi.org/10.1115/IMECE2023-116730
View Paper titled, An Additively Manufactured Small Footprint Wind Tunnel for Wall Jet and Particle Scavenging Studies
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Topics: Additive manufacturing, Design, Particulate matter, Wind tunnels
Journal Articles

Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels

Samuel Altland, Xiang I. A. Yang, Karen A. Thole, Robert Kunz, Stephen McClain
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2023, 145(10): 101004.
Paper No: TURBO-22-1365
https://doi.org/10.1115/1.4062838
Published Online: July 28, 2023
View Article titled, Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels
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Topics: Drag (Fluid dynamics), Surface roughness, Stress, Cooling
Journal Articles

An Assessment of Second Moment Closure Modeling for Stratified Wakes Using Direct Numerical Simulations Ensembles

Naman Jain, Xinyi L. D. Huang, Jiaqi J. L. Li, Xiang I. A. Yang, Robert Kunz
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. September 2023, 145(9): 091502.
Paper No: FE-22-1645
https://doi.org/10.1115/1.4062590
Published Online: June 6, 2023
View Article titled, An Assessment of Second Moment Closure Modeling for Stratified Wakes Using Direct Numerical Simulations Ensembles
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Topics: Modeling, Pressure, Reynolds-averaged Navier–Stokes equations, Statistics, Surface mount components, Wakes, Turbulence, Computer simulation, Diffusion (Physics), Energy dissipation
Journal Articles

Full Stage Axial Compressor Performance Modeling Incorporating the Effects of Blade Damage Due to Particle Ingestion

Emanuel Chirayath, Haosen Xu, Xiang Yang, Robert Kunz
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2023, 145(9): 091001.
Paper No: TURBO-22-1116
https://doi.org/10.1115/1.4062397
Published Online: May 22, 2023
View Article titled, Full Stage Axial Compressor Performance Modeling Incorporating the Effects of Blade Damage Due to Particle Ingestion
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Topics: Blades, Compressors, Damage, Rotors, Pressure, Flow (Dynamics), Computational fluid dynamics, Particulate matter, Modeling
Proceedings Papers

Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels

Samuel Altland, Xiang Yang, Karen Thole, Robert Kunz, Stephen McClain
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A014, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81218
https://doi.org/10.1115/GT2022-81218
View Paper titled, Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels
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Topics: Additive manufacturing, Computational fluid dynamics, Cooling, Surface roughness
Proceedings Papers

A Study of Second Moment Closure Modeling for Stratified Wakes Using DNS Ensembles

Naman Jain, Xinyi Huang, Xiang Yang, Robert Kunz
Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A012, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-86979
https://doi.org/10.1115/FEDSM2022-86979
View Paper titled, A Study of Second Moment Closure Modeling for Stratified Wakes Using DNS Ensembles
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Topics: Modeling, Wakes, Reynolds-averaged Navier–Stokes equations, Particle filtering (numerical methods), Sheet molding compound (Plastics), Sliding mode control, Surface mount components, Energy dissipation, Flow (Dynamics), Turbulence
Journal Articles

Second Moment Closure Modeling and Direct Numerical Simulation of Stratified Shear Layers

Naman Jain, Hieu T. Pham, Xinyi Huang, Sutanu Sarkar, Xiang Yang, Robert Kunz
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. April 2022, 144(4): 041102.
Paper No: FE-21-1499
https://doi.org/10.1115/1.4053444
Published Online: February 16, 2022
View Article titled, Second Moment Closure Modeling and Direct Numerical Simulation of Stratified Shear Layers
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Topics: Computer simulation, Diffusion (Physics), Energy dissipation, Flow (Dynamics), Modeling, Pressure, Reynolds-averaged Navier–Stokes equations, Shear (Mechanics), Stress, Surface mount components
Journal Articles

Modeling of Cube Array Roughness: RANS, Large Eddy Simulation, and Direct Numerical Simulation

Samuel Altland, Haosen H. A. Xu, Xiang I. A. Yang, Robert Kunz
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2022, 144(6): 061106.
Paper No: FE-21-1492
https://doi.org/10.1115/1.4053611
Published Online: February 16, 2022
View Article titled, Modeling of Cube Array Roughness: RANS, Large Eddy Simulation, and Direct Numerical Simulation
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Topics: Drag (Fluid dynamics), Flow (Dynamics), Packing (Shipments), Packings (Cushioning), Reynolds-averaged Navier–Stokes equations, Stress, Surface roughness, Turbulence, Computer simulation, Large eddy simulation
Proceedings Papers

Experimental and Computational Studies on Saltation of Metal Powders Used in Laser Powder Bed Fusion Systems for Metal Additive Manufacturing

Thao Tran-Le, Jiaxuan Wang, Margaret Byron, Stephen Lynch, Robert Kunz
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A003, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-69550
https://doi.org/10.1115/IMECE2021-69550
View Paper titled, Experimental and Computational Studies on Saltation of Metal Powders Used in Laser Powder Bed Fusion Systems for Metal Additive Manufacturing
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Topics: Additive manufacturing, Lasers, Metal powders, Metals
Journal Articles

A Numerical Investigation Into the Heat Transfer Performance and Particle Dynamics of a Compressible, Highly Mass Loaded, High Reynolds Number, Particle Laden Flow

Kyle Hassan, Robert Kunz, David Hanson, Michael Manahan
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. December 2021, 143(12): 121801.
Paper No: HT-21-1270
https://doi.org/10.1115/1.4052437
Published Online: October 18, 2021
View Article titled, A Numerical Investigation Into the Heat Transfer Performance and Particle Dynamics of a Compressible, Highly Mass Loaded, High Reynolds Number, Particle Laden Flow
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Topics: Flow (Dynamics), Heat transfer, Particulate matter, Reynolds number, Temperature, Turbulence, Pipes, Solids, Temperature distribution, Nitrogen
Proceedings Papers

Second Moment Closure Modeling and DNS of Stratified Shear Layers

Naman Jain, Xinyi Huang, Xiang Yang, Robert Kunz, Hieu T. Pham, Sutanu Sarkar
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T05A028, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65570
https://doi.org/10.1115/FEDSM2021-65570
View Paper titled, Second Moment Closure Modeling and DNS of Stratified Shear Layers
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Topics: Modeling, Shear (Mechanics), Stress, Anisotropy, Diffusion (Physics), Energy dissipation, Flow (Dynamics), Particle filtering (numerical methods), Pressure, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Modeling of Cube Array Roughness: RANS, LES, and DNS

Samuel Altland, Haosen H. A. Xu, Xiang I. A. Yang, Robert Kunz
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T05A027, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65494
https://doi.org/10.1115/FEDSM2021-65494
View Paper titled, Modeling of Cube Array Roughness: RANS, LES, and DNS
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Topics: Modeling, Reynolds-averaged Navier–Stokes equations, Surface roughness
Proceedings Papers

A Numerical Investigation Into the Heat Transfer Performance and Particle Dynamics of a Compressible, Highly Mass Loaded, High Reynolds Number, Particle Laden Flow

Kyle Hassan, Robert Kunz, David Hanson, Michael Manahan
Proc. ASME. HT2021, ASME 2021 Heat Transfer Summer Conference, V001T08A004, June 16–18, 2021
Publisher: American Society of Mechanical Engineers
Paper No: HT2021-63262
https://doi.org/10.1115/HT2021-63262
View Paper titled, A Numerical Investigation Into the Heat Transfer Performance and Particle Dynamics of a Compressible, Highly Mass Loaded, High Reynolds Number, Particle Laden Flow
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Topics: Flow (Dynamics), Heat transfer, Particle dynamics, Particulate matter, Reynolds number
Proceedings Papers

Experimental and Computational Studies of Particle Scavenge Flow in Direct Laser Metal Sintering

Morgan Austin, Thao Tran-Le, Robert Kunz, Timothy Simpson, Rui Ni
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A052, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4965
https://doi.org/10.1115/AJKFluids2019-4965
View Paper titled, Experimental and Computational Studies of Particle Scavenge Flow in Direct Laser Metal Sintering
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Topics: Flow (Dynamics), Lasers, Metals, Particulate matter, Sintering, Computational fluid dynamics, Cross-flow, Aluminum alloys, Bubbles, Design