Publications

Found 175 results
[ Type(Asc)] Year
Thesis
Jin, Kaiyuan. Thermofluidics of Sulfur-based Thermal Energy Storage. Vol. Doctor of Philosophy. Los Angeles: University of California, 2019. (12.23 MB)
Dodson, Christopher A. Ion Energy and Wave Propagation in a Hollow Cathode Plume In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2018. (6.61 MB)
Chiu, Phillip K. Aerodynamics and optimal design of biplane wind turbine blades In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2017. (17.33 MB)
Patino, Marlene. Plasma Inter-Particle and Particle-Wall Interactions In Mechanical and Aerospace Engineering . Vol. Doctor of Philosophy. Los Angeles: University of California, 2017. (29.03 MB)
Dankongkakul, Ben. Overcoming the Scaling Limitations of Ring-Cusp DC Ion Thruster Discharges In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2017. (22.8 MB)
Tse, Louis. Thermodynamic and Cost Modeling of Thermal Energy Storage Systems Using Novel Storage Media In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2016. (5.1 MB)
Bran-Anleu, Gabriela. Complex Heat Exchangers for Improved Performance In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2016. (4.03 MB)
Conversano, Ryan W. Low-Power Magnetically Shielded Hall Thrusters In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2015. (3.21 MB)
Araki, Samuel J. Multi-Scale Multi-Species Modeling for Plasma Devices In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2014. (7.61 MB)
Roth-Johnson, Perry. Aero-Structural Design Investigations for Biplane Wind Turbine Blades In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2014. (13.71 MB)
Mao, Hann-Shinn. Plasma Structure and Behavior of Miniature Ring-Cusp Discharges In Mechanical and Aerospace Engineering. Vol. Doctor of Philosophy. Los Angeles: University of California, 2013. (13.93 MB)
Presentation
Patino, Marlene I., Yevgeny Raitses, and Richard E. Wirz. Electron Emission from Nano and MicroStructured Materials for Plasma Applications., 2016. (2.04 MB)
Patino, Marlene I., Yevgeny Raitses, and Richard E. Wirz. Electron Emission from Nano and Microstructured Materials for Fusion and Plasma Discharge Applications., 2016. (2.15 MB)
Patino, Marlene I., Taylor S. Matlock, and Richard E. Wirz. Characterization of Ion-Atom Collisions and Electron Emission in Electric Propulsion Plasma Conditions., 2015. (2.28 MB)
Conversano, Ryan W., Dan M. Goebel, Richard R. Hofer, Taylor S. Matlock, and Richard E. Wirz. Magnetically Shielded Miniature (MaSMi) Hall Thruster In 2014 UCLA Technology Forum., 2014. (1.99 MB)
Patino, Marlene I., Taylor S. Matlock, and Richard E. Wirz. Characterization of Ion-Atom Collisions for Electric-Propulsion Plasma Conditions., 2014. (2.09 MB)
Patino, Marlene I., Taylor S. Matlock, and Richard E. Wirz. Experimental Study of Fundamental Electric Propulsion Plasma Physics Using a Well-Characterized Plasma Experiment., 2014. (1.5 MB)
Roth-Johnson, Perry, Phillip K. Chiu, and Richard E. Wirz. Advanced biplane blade design for large-scale wind turbines., 2014. (3.8 MB)
Roth-Johnson, Perry, Phillip K. Chiu, and Richard E. Wirz. Biplane wind turbine blades: aero-structural design studies., 2014. (5.67 MB)
Roth-Johnson, Elizabeth, Perry Roth-Johnson, Kymberly Alvarez, Jennifer Choi, Richard E. Wirz, and Greg Carman. Building Engineers and Mentors: Planning for the Future., 2013. (1.82 MB)
Roth-Johnson, Perry, Elizabeth Roth-Johnson, Kymberly Alvarez, Jennifer Choi, Richard E. Wirz, and Greg Carman. Building Engineers and Mentors: Bringing science and engineering to Los Angeles schools., 2013. (1.46 MB)
Wirz, Richard E., Taylor S. Matlock, and Dan M. Goebel. Preliminary results of long-duration and pulsed plasma material exposure experiments at the UCLA Plasma Interactions facility.., 2013. (1.36 MB)
Johnson, Perry M., and Richard E. Wirz. Structural design of spars for 100-m biplane wind turbine blades., 2012. (2.05 MB)
Choi, D, Richard E. Wirz, Gani B. Ganapathi, and Pirouz H Kavehpour. Numerical Simulation of Heat Transfer to a Supercritical Thermal Fluid ., 2012.
Chiu, Phillip K., Perry M. Johnson, and Richard E. Wirz. Aerodynamic Performance of Biplane Airfoils for Wind Turbine Blades ., 2012.
Patino, Marlene I., Lauren E. Chu, and Richard E. Wirz. Simplified Plasma Experiment for Investigation of Plasma Diffusion & Transport Mechanisms., 2012. (919.76 KB)
Johnson, Perry M., and Richard E. Wirz. Aero-structural Investigation of Biplane Wind Turbine Blades., 2012. (1.81 MB)
Johnson, Perry M., and Richard E. Wirz. Aero-Structural Performance of Multiplane Wind Turbine Blades., 2011. (5 MB)
Wirz, Richard E. Discharge Plasma Processes of Ring-Cusp Ion Thrusters ., 2005.
Patent
Conversano, Ryan W., Dan M. Goebel, and Richard E. Wirz. Magnetically Shielded Miniature Hall Thruster., 2014.
Furst, Benjamin I., Richard E. Wirz, Adrienne S. Lavine, Pirouz H Kavehpour, and Reza Baghaei Lakeh. High Density Thermal Energy Storage System at the Thermodynamic Critical Point., 2013.
Wirz, Richard E., Antoine Stopin, Adrienne S. Lavine, Pirouz H Kavehpour, Miguel Garcia-Garibay, Reza Baghaei Lakeh, and Louis Tse. High-Density, High-Temperature Thermal Energy Storage And Retrieval., 2013.
Roth-Johnson, Perry, and Richard E. Wirz. High-Strength Wind Turbine Blades and Wings., 2013.
Furst, Benjamin I., Richard E. Wirz, and Adrienne S. Lavine. Thermal Property Measurement Device., 2013.
Wirz, Richard E., and Sebastian Aspe. Design for High Performance Wind Turbines., 2012.
Wirz, Richard E. Advanced aerodynamic and structural blade and wing design., 2011.
Wirz, Richard E. Accelerator system and method of accelerating particles., 2010.
Wirz, Richard E. Internal conductively-heated cathode., 2008.
Journal Article
Dodson, Christopher A., Benjamin A. Jorns, and Richard E. Wirz. "Measurements of ion velocity and wave propagation in a hollow cathode plume." Plasma Sources Science and Technology 28, no. 6 (2019). (2.06 MB)
Wirz, Richard E., Amey Barde, Karthik Nithyanandam, Kaiyuan Jin, and Yide Wang. "Low-Cost Thermal Energy Storage for Dispatchable CSP." Energy Research and Development Division, California Energy Commission, FINAL PROJECT REPORT (2019). (10.06 MB)
Patino, Marlene, and Richard E. Wirz. "Electron emission from carbon velvet due to incident xenon ions." Appl. Phys. Lett. 13, no. 041603 (2018). (757.04 KB)
Dodson, C., D. Perez-Grande, B. Jorns, D. Goebel, and R. Wirz. "Ion Heating Measurements on the Centerline of a High-Current Hollow Cathode Plume." Journal of Propulsion and Power (2018). (1.17 MB)
Nithyanandam, Karthik, Amey Barde, and Richard E. Wirz. "Heat transfer behavior of elemental sulfur for low temperature thermalenergy storage applications." International Journal of Heat and Mass Transfer 127, Park B, no. December 2018 (2018). (5.03 MB)
Barde, Amey, Kaiyuan Jin, Mitchell Shinn, Karthik Nithyanandam, and Richard E. Wirz. "Demonstration of a low cost, high temperature elemental sulfur thermal battery." Applied Thermal Engineering 137 (2018): 259-267. (2.89 MB)
Shinn, Mitchell, Karthik Nithyanandam, Amey Barde, and Richard E. Wirz. "Sulfur-based thermal energy storage system using intermodalcontainment: Design and performance analysis." Applied Thermal Engineering 128 (2018). (3.1 MB)
Dankongkakul, Ben, and Richard E. Wirz. "Axial Ring-Cusp Hybrid (ARCH) plasma discharge: an approach to highly efficient miniature-scale ion sources." Plasma Sources Science and Technology 27, no. 12 (2018). (1.37 MB)
Patino, Marlene, Richard E. Wirz, Yevgeny Raitses, and Bruce Koel. "Angular, temperature, and impurity effects on secondary electron emission from Ni(110)." Journal of Applied Physics 24, no. 093301 (2018). (1.62 MB)
Huerta, Cesar E., Marlene Patino, and Richard E. Wirz. "Secondary electron emission from textured surfaces." Journal of Physics D: Applied Physics 51, no. 14 (2018). (2.19 MB)
Nithyanandam, Karthik, Amey Barde, Reza Baghaei Lakeh, and Richard E. Wirz. "Charge and discharge behavior of elemental sulfur in isochoric high temperature thermal energy storage systems." Applied Energy 214 (2018): 166-177. (2.15 MB)
Patino, Marlene I., and Richard E. Wirz. "Characterization of xenon ion and neutral interactions in a well-characterized experiment." Physics of Plasmas 25, no. 6 (2018). (1.96 MB)
Lakeh, Reza Baghaei, Richard E. Wirz, Pirouz H Kavehpour, and Adrienne S. Lavine. "A Dimensionless Model for Transient Turbulent Natural Convection in Isochoric Vertical Thermal Energy Storage Tubes." Journal of Thermal Science and Engineering Applications 10, no. 3 (2018). (1.07 MB)
Rivera, David, Richard E. Wirz, and Nasr M. Ghoniem. "Experimental measurements of surface damage and residual stresses in micro-engineered plasma facing materials." Journal of Nuclear Materials 486 (2017): 111-121. (3.2 MB)
Conversano, Ryan W., Dan M. Goebel, Richard R. Hofer, Ioannis G. Mikellides, and Richard E. Wirz. "Performance Analysis of a Low-Power Magnetically Shielded Hall Thruster: Experiments." Journal of Propulsion and Power 33, no. 4 (2017). (1.03 MB)
Jorns, Benjamin A., Christopher A. Dodson, Dan M. Goebel, and Richard E. Wirz. "Propagation of ion acoustic wave energy in the plume of a high-current LaB6 hollow cathode." Physical Review E 96 (2017). (1.07 MB)
Dankongkakul, Ben, and Richard E. Wirz. "Miniature ion thruster ring-cusp discharge performance and behavior." Journal of Applied Physics 122, no. 24 (2017). (12.53 MB)
Matthes, Chris S. R., Nasr M. Ghoniem, Gary Z. Li, Taylor S. Matlock, Dan M. Goebel, Chris A. Dodson, and Richard E. Wirz. "Fluence-dependent sputtering yield of micro-architectured materials." Applied Surface Science 407 (2017): 223-235. (5.57 MB)
Li, Gary Z., Taylor S. Matlock, Dan M. Goebel, Chris A. Dodson, Chris S. R. Matthes, Nasr M. Ghoniem, and Richard E. Wirz. "In situ plasma sputtering and angular distribution measurements for structured molybdenum surfaces." Plasma Sources Science and Technology 26, no. 6 (2017). (1.36 MB)
Patino, Marlene I., Yevgeny Raitses, and Richard E. Wirz. "Secondary Electron Emission from Plasma-Generated Nanostructured Tungsten Fuzz." Applied Physics Letters 109, no. 201602 (2016). (1.02 MB)
Huerta, Cesar E. "View factor modeling of sputter-deposition on micron-scale-architectured surfaces exposed to plasma." Journal of Applied Physics 119, no. 11 (2016).
Conversano, Ryan W., Dan M. Goebel, Richard R. Hofer, Taylor S. Matlock, and Richard E. Wirz. "Development and Initial Testing of a Magnetically Shielded Miniature Hall Thruster." IEEE Transactions on Plasma Science Special Issue on Plasma Propulsion PP, no. 99 (2015). (2.2 MB)
Tse, Louis A., Richard E. Wirz, and Adrienne S. Lavine. "Optimal Operation Strategies For Thermal Energy Storage Systems In Solar Thermal Power Plants." Solar Energy Engineering ES2015-49053 (2015): V002T18A001. (1.08 MB)
Patino, Marlene, Yevgeny Raitses, Bruce Koel, and Richard E. Wirz. "Analysis of Secondary Electron Emission for Conducting Materials Using LEED Optics." Journal of Physics D: Applied Physics 48, no. 195204 (2015). (1.48 MB)
Tse, Louis A., Adrienne S. Lavine, Reza Baghaei Lakeh, and Richard E. Wirz. "Exergetic Optimization and Performance Evaluation of Multi-Phase Thermal Energy Storage Systems." Solar Energy (2015).
Lakeh, Reza Baghaei, Adrienne S. Lavine, Pirouz H Kavehpour, and Richard E. Wirz. "Study of Turbulent Natural Convection in Vertical Storage Tubes for Supercritical Thermal Energy Storage." Numerical Heat Transfer, Part A: Applications 67, no. 2 (2014): 119-139.
Mao, Hann-Shin, and Richard E. Wirz. "Plasma Structure of Miniature Ring-Cusp Ion Thruster Discharges." Journal of Propulsion and Power 30 (2014): 628-636.
Dankongkakul, Ben, Samuel J. Araki, and Richard E. Wirz. "Magnetic field structure influence on primary electron cusp losses for micro-scale discharges." Physics of Plasmas 21, no. 4 (2014). (2.64 MB)
Bran-Anleu, Gabriela, Richard E. Wirz, Adrienne S. Lavine, and Pirouz H Kavehpour. "An Algorithm to Determine the Optimized Data Range in Transient Hotwire Thermal Property Measurement." Review of Scientific Instruments (2014).
Roth-Johnson, Perry, and Richard E. Wirz. "Aero-structural investigation of biplane wind turbine blades." Wind Energy 17, no. 3 (2014): 397-411. (1.56 MB)
Bran-Anleu, G, AS Lavine, RE Wirz, and HP Kavehpour. "Algorithm to optimize transient hot-wire thermal property measurement." Review of Scientific Instruments 85 (2014). (1.05 MB)
Tse, Louis A., Gani B. Ganapathi, Richard E. Wirz, and Adrienne S. Lavine. "Spatial and Temporal Modeling of Sub- and Supercritical Thermal Energy Storage." Solar Energy 103 (2014): 402-410.
Roth-Johnson, Perry, Richard E. Wirz, and Edward Lin. "Structural design of spars for 100-m biplane wind turbine blades." Renewable Energy 71, no. November (2014): 133-155. (3.69 MB)
Matlock, Taylor S., Dan M. Goebel, Ryan W. Conversano, and Richard E. Wirz. "A dc plasma source for plasma–material interaction experiments." Plasma Sources Science and Technology (2014). (2.01 MB)
Araki, Samuel J., and Richard E. Wirz. "Particle Weighting Algorithm for PIC Simulations in a Non-Uniform 2D Axisymmetric Mesh." Journal of Computational Science (2014).
Lakeh, Reza Baghaei, Adrienne S. Lavine, Pirouz H Kavehpour, Gani B. Ganapathi, and Richard E. Wirz. "Effect of Laminar and Turbulent Buoyancy-Driven Flows on Thermal Energy Storage using Supercritical Fluids." Numerical Heat Transfer, Part A: Applications 64 (2013): 955-973.
Araki, Samuel J., and Richard E. Wirz. "Ion–Neutral Collision Modeling Using Classical Scattering With Spin-Orbit Free Interaction Potential." IEEE Transactions on Plasma Science 41 (2013): 470-480.
Conversano, Ryan W., and Richard E. Wirz. "Mission Capability Assessment of CubeSats Using a Miniature Ion Thruster." AIAA Journal of Spacecraft and Rockets 50, no. 5 (2013): 1035-1046. (5.49 MB)
Chu, Emily, Dan M. Goebel, and Richard E. Wirz. "Reduction of Energetic Ion Production in Hollow Cathodes by External Gas Injection." Journal of Propulsion and Power (2013): 1-9.
Tarzi, Zahi, Jason Speyer, and Richard E. Wirz. "Fuel optimum low-thrust elliptic transfer using numerical averaging." Acta Astronautica 86 (2013): 95-118.
Mao, Hann-Shin, and Richard E. Wirz. "Magnetic stream function characterization of cusp confined plasma discharges." Physics of Plasmas (2012).
Mao, Hann-Shin, and Richard E. Wirz. "Quasi-equilibrium electron density along a magnetic field line." Applied Physics Letters 101 (2012): 224106.
Wirz, Richard E., John R. Anderson, and Ira Katz. "Time-Dependent Erosion of Ion Optics." Journal of Propulsion and Power 27, no. 1 (2011).
Wirz, Richard E., and Shaun S. Shariff. "Ground Effects for Widely Spaced, Supersonic, Vertical Retrorockets." Journal of Spacecraft and Rockets 46 (2009): 599-605.
Wirz, Richard E., Regina Sullivan, JoHanna Przybylowski, and Mike Silva. "Hollow Cathode and Low-Thrust Extraction Grid Analysis for a Miniature Ion Thruster." International Journal of Plasma Science and Engineering 2008 (2008): 1-11.
Wirz, Richard E., and Dan M. Goebel. "Effects of magnetic field topography on ion thruster discharge performance." Plasma Sources Science and Technology 17 (2008): 035010.
Wirz, Richard E., John R. Anderson, Dan M. Goebel, and Ira Katz. "Decel Grid Effects on Ion Thruster Grid Erosion." IEEE Transactions on Plasma Science 36 (2008): 2122-2129.
Hofer, Richard R., Lee Johnson, Dan M. Goebel, and Richard E. Wirz. "Effects of Internally Mounted Cathodes on Hall Thruster Plume Properties." IEEE Transactions on Plasma Science 36 (2008): 2004-2014.
Goebel, Dan M., and Richard E. Wirz. "Analytical Ion Thruster Discharge Performance Model." Journal of Propulsion and Power 23, no. 5 (2007): 1055-1067.
Conference Proceedings
Lakeh, RB, YB Guerrero, K Nithyanandam, and RE Wirz. Assessment of Natural Convection Heat Transfer in an Isochoric Thermal Energy Storage System In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015.
Wirz, Richard E. Coupled Analysis of Ion Thruster Grid Erosion and Electron Backstreaming In Space Propulsion Conference. San Sebastian, Spain, 2010. (881.98 KB)
Conference Paper
Huh, Henry, and Richard Wirz. "Numerical Simulation of Electrospray Thruster Extraction." In 36th International Electric Propulsion Conference. Vienna, Austria. Vienna, Austria, 2019. (4.81 MB)
Wright, Peter L., Henry Huh, Anirudh Thuppul, Nolan M. Uchizono, and Richard E. Wirz. "A Novel Variable Mode Emitter for Electrospray Thrusters." In 36th International Electric Propulsion Conference. Vienna, Austria, 2019. (4.72 MB)
Davis, McKenna, Henry Huh, Adam Collins, and Richard Wirz. "Interaction of Droplets in Electrospray Plumes." In 36th International Electric Propulsion Conference. Vienna, Austria, 2019. (1.01 MB)
Huerta, Cesar E., and Richard E. Wirz. "DC-Ion Model Validation and Convergence Studies." In 2018 Joint Propulsion Conference, AIAA Propulsion and Energy Forum. Cincinnati, OH, 2018. (21.57 MB)
Samples, Stephen, Gary Z. Li, and Richard E. Wirz. "Performance Testing and Development of the MiXI Thruster with the ARCH Discharge." In 2018 Joint Propulsion Conference, AIAA Propulsion and Energy Forum. Cincinnati, OH, 2018. (1.85 MB)
Li, Gary Z., Cesar E. Huerta, and Richard E. Wirz. "Computational Modeling of an Axial Ring Cusp Hybrid Discharge for the MiXI Thruster." In 2018 Joint Propulsion Conference, AIAA Propulsion and Energy Forum. Cincinnati, OH, 2018. (1.75 MB)
Thuppul, Anirudh, Peter Wright, and Richard E. Wirz. "Lifetime Considerations and Estimation for Electrospray Thrusters." In 2018 Joint Propulsion Conference, AIAA Propulsion and Energy Forum. Cincinnati, OH, 2018. (1.31 MB)
Wright, Peter, Anirudh Thuppul, and Richard E. Wirz. "Life-Limiting Emission Modes for Electrospray Thrusters." In 2018 Joint Propulsion Conference, AIAA Propulsion and Energy Forum. Cincinnati, OH, 2018. (1.93 MB)
Dodson, C., B. Jorns, and R. Wirz. "Ion Acoustic Wave Propagation and Heating in a High-Current Hollow Cathode Plume." In 35th International Electric Propulsion Conference. Atlanta, GA, 2017. (12.32 MB)
Dankongkakul, Ben, and Richard E. Wirz. "Design and Performance of the Axial Ring-Cusp Hybrid (ARCH) Discharge for Miniature Ion Thrusters." In 35th International Electric Propulsion Conference. Atlanta, GA, 2017. (2.43 MB)
Huerta, Cesar E., and Richard E. Wirz. "Surface Geometry Effects on Secondary Electron Emission Via Monte Carlo Modeling." In 52nd AIAA/SAE/ASEE Joint Propulsion Conference, Propulsion and Energy Forum. Salt Lake City, UT, 2016. (11.61 MB)

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