Members
Members

Professor Timothy S. Fisher
Principal Investigator
Timothy S. Fisher (PhD 1998, Cornell) was born in Aurora, IL USA. He joined UCLA’s Department of Mechanical & Aerospace Engineering in 2017 after spending 15 years at Purdue’s School of Mechanical Engineering, and several years previously at Vanderbilt University. He is the founding Director of the Center for Integrated Thermal Management of Aerospace Vehicles, supported by the US Air Force Research Laboratory and leading industrial members: Boeing, Honeywell, Lockheed Martin, Northrop Grumman, and Rolls-Royce. He is an Adjunct Professor in the International Centre for Materials Science at the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) and he co-directs the Joint Centre on Nanomaterials for Clean Energy and Environmental Sensors. From 2009 to 2012, he served as a Research Scientist at the Air Force Research Laboratory’s newly formed Thermal Sciences and Materials Branch of the Materials and Manufacturing Directorate. In 2013 he became the James G. Dwyer Professor in Mechanical Engineering at Purdue, and in the same year he founded a start-up company to commercialize inventions from his laboratory. Prior to his graduate studies, he was employed from 1991 to 1993 as a design engineer in Motorola’s Automotive and Industrial Electronics Group. His research has included studies of nanoscale heat transfer, carbon nanomaterial synthesis, coupled electro-thermal effects in semiconductor and electron emission devices, energy conversion and storage materials and devices, microfluidic devices, biosensing, and related computational methods ranging from atomistic to continuum scales. (Google Scholar, Linkedin) [tsfisher@g.ucla.edu]

Dr. Yijun Ge
Postdoctoral Researcher
Yijun joined the group in Fall 2015 as a PhD student in Mechanical Engineering and earned the PhD degree in March 2022. She received the MS degree from Purdue University and Bachelors degree from Huazhong University of Science and Technology, China. She worked on oxide interface thermal transport, using Density Functional Theory in combination with an atomistic Green’s Function approach. She is working on electron-phonon coupling and thermal transport across semiconductor interfaces, using numerical methods. Another research interest is modeling photothermal effects in PAHs. She is also interested in thermal transport and electron-phonon coupling mechanisms in metals and 2D material interfaces. (LinkedIn) [yijunge@g.ucla.edu]

Bryce Boyer
PhD Student
Bryce joined the group in Fall 2018 as a PhD student in Mechanical engineering. After completing his BS in 2016 at Kansas State University, he worked for two years in the flare combustion industry as a project engineer. His current research focuses on aerospace thermal protection systems, particularly ablation at hypersonic leading edges. Bryce’s other interests include spacecraft thermal management and mission design, propulsion systems, and high-temperature materials. In his free time, he enjoys learning languages, scuba diving, and watching Kansas City sports teams win championships. [brycejboyer@g.ucla.edu]

Indronil Ghosh
PhD Student
Indronil joined NTRG in Spring 2019 as a PhD student in Mechanical Engineering. He earned his BS in Engineering Mechanics from the University of Illinois at Urbana-Champaign, where he completed research on the optimization of Raman cooling of photonic crystals, under Prof. Gaurav Bahl. He has collaborated with The Aerospace Corporation to computationally model the heat transfer and fluid mechanics in ball bearings. Interning at The Aerospace Corporation, he developed thermal analyses and data processing tools for projects on orbital heating and laser heating. Now, at UCLA, he is modeling thermionic emission at the hypersonic leading edge. You can also find him helping his colleagues numerically model flash depressurization. Outside research, Indronil enjoys using AI/machine learning APIs to automate his home and learning new languages (currently Mandarin and Japanese). (Google Scholar, LinkedIn, ResearchGate) [ighosh@g.ucla.edu]

Min Jong Kil (co-webmaster)
PhD Student
Min Jong Kil joined the NTRG in Fall 2021 as a PhD student in Mechanical Engineering. He received his MS in Mechanical Engineering from UCLA in 2021. He received his B.S. from Seoul National University of Science and Technology (SNUST) (under Prof. Jihwan An) and from Northumbria University in 2020, where he worked on atomic layer deposition, solid oxide fuel cells, and catalysts. He worked at Korea Electronics Technology Institute (KETI) (under Dr. Hyeongkeun Kim), on atomic layer deposition, EUV pellicle, and supercapacitors. In NTRG, he is working on solar-thermal graphite synthesis of the heat spreader and thermal interface materials for electronics cooling. Especially, he is working on thermally enhanced organic substrates for GaN power amplifiers for SRC project. Also, he is working on developing thermal properties measurements (thermal diffusivity and thermal interface resistance). (Google Scholar, LinkedIn, ResearchGate) [hjkz3514@g.ucla.edu]

Zachary Wong (co-webmaster)
PhD Student
Zachary joined NTRG in Fall 2019 as a UCLA undergraduate in Mechanical Engineering. He completed his MS and is currently pursuing a PhD in Mechanical and Aerospace Engineering. His early work was part of the ARPA-E SHOTEAM project (under Dr. Ivan Catton and Dr. Timothy Fisher), and centered on computational fluid dynamics and performance optimization for high-temperature supercritical CO2 recuperators. Currently his research focus is on passive two-phase thermal control for spacecraft, mini-/micro-channel heat transfer, and data assimilation. Some of his other interests beyond research are long-distance running, cooking, and playing music. (LinkedIn) [zwong888@g.ucla.edu]

Benjamin Heronimus
PhD Student
Ben joined the NTRG in Fall 2022 as a PhD student in Aerospace Engineering. He received his bachelors in Astrophysics and Engineering Physics from the University of California, Berkeley. At Berkeley he worked on applications of carbon nanotube based technologies with applications including electron beam lithography, COVID-19 detection, and E-field emission. Within NTRG, Ben works as a part of the Solar Processing Team. Here he focuses on discovering and highlighting the properties of the carbon based materials that are a product of the solar process. In the future, Ben hopes to determine the viability of altering the process for carbon dioxide while continuing to reap the benefits of the produced carbon materials. Outside of research, Ben appreciates going to the gym, reading science fiction, playing board games, and trying to catch up on Dungeons and Dragons shows. (Linkedin) [bheronimus@g.ucla.edu]

Hengrui Xu
PhD Student
Hengrui Xu joined NTRG in Fall 2022 as a PhD student in Mechanical Engineering. He earned his Bachelors degree with honors in Energy and Power Engineering from Xi’an Jiaotong University in 2022. In NTRG, Hengrui is working on the project titled Direct Solar Conversion of Biogas to Hydrogen and Solid Carbon. Outside research, he likes swimming and playing badminton. (Linkedin) [hengruixu@g.ucla.edu]

Yanda Wang
PhD Student
Yanda Wang joined the NTRG in Fall 2023 as a PhD student in Mechanical Engineering. He received his B.S. in Energy and Power Engineering from Huazhong University of Science and Technology (HUST) in 2023, where he worked on ReaxFF study on pressurized oxy-fuel combustion and research on green hydrogen production technology from biomass based on machine learning. In NTRG, his research currently focuses on solar−thermal production of graphitic carbon and hydrogen via methane decomposition. In the spare time, he is a fan of post-modern film and enjoys hiking in national parks. (Linkedin) [yandawang926@g.ucla.edu]

Rishi Pugazhendhi
Master Student
Rishi Pugazhendhi joined NTRG in Fall 2022 as a MS student in Mechanical Engineering, with a focus on Heat and Mass Transfer. He received his B.E. degree in Mechanical Engineering from Anna University, Chennai in 2021. Prior to his graduate study, he worked as Thermal and Energy Specialist in the R&D department of Nestlives Private Limited, Chennai. He is passionate about developing innovative and sustainable solutions for thermal management challenges in various domains, such as electronics, HVAC and aerospace. His Thesis Project focuses on elevating Technology Readiness Level (TRL) of Two-Phase Pulsed Flash Cooling Technology for High Heat Flux Cooling Applications. He conceptualized and improved flash cooling technology in terms of design, prototype development and evinced technology’s ability to effectively cool a heat flux up to 100 W/cm2. With persistent learning, collaboration, meticulous conceptualization and analysis, he has proposed numerous innovative solutions for complex challenges resulting in 21 influential scientific research and review studies in the field of energy and thermal domain, gaining over 1150+ citations. Further, he serves as a recognized reviewer for Elsevier journals including Applied Energy and International Journal of Heat and Mass Transfer. His Core competencies include single and two-phase cooling, Design of Experiments (DOE), thermal modelling and simulation, thermal validation, data analytics and HVAC systems. (Google Scholar, Linkedin, Research Gate) [rishi12@g.ucla.edu]

Rafael Maldonado Comas
Master Student
Rafael Maldonado Comas is from San Juan, Puerto Rico. He joined NTRG in Fall 2023 as a MS student in Mechanical Engineering with a focus on Mass and Heat Transfer. He received his B.E. degree in Mechanical Engineering with a concentration in design from the Georgia Institute of Technology in 2019. Prior to his graduate study, Rafael worked for Honeywell Aerospace as thermal analyst / project engineer for heat exchangers and as an R&D engineer for thermal management systems, the latter of which is on-going. Within NTRG, he is working on high-temperature supercritical CO2 heat exchanger optimization and testing. Rafael is passionate about energy systems, renewable and sustainable energy, heat exchangers, and heat transfer. In the future, he hopes to contribute to zero-carbon emission transportation and power via improvements to thermal management systems. Outside of research, Rafael likes playing basketball, watching sports, playing board games, traveling, and hanging out with friends and family. [rafamcpr9@g.ucla.edu]

Soyoung Jo
Master Student
Soyoung Jo joined the NTRG in Fall 2023 as a master’s student in Mechanical Engineering. She received her bachelor’s degree in Manufacturing Systems and Design Engineering (MSDE) department from Seoul National University of Science and Technology (SNUST) and from Northumbria University in 2021. Prior to her graduate study, Soyoung worked as a battery system engineer for EVs in the R&D department of Hyundai Motors. Within NTRG, Soyoung works as a part of the Solar Processing Team. Outside of research, she enjoys traveling, tennis, golf, and hanging out with family and friends. (Linkedin) [soyoungjo@g.ucla.edu]

Qusay AlMaawali
Undergraduate Student
Qusay is a fourth-year mechanical engineering student at UCLA. He currently serves as the Structures lead for Supermileage where he works with composites, design, and manufacturing of efficient vehicles. Qusay led the project of manufacturing the new Supermileage vehicle monocoque using carbon fiber and aluminum honeycomb. Qusay also serves as the Bruin Racing treasurer where he handles finances of over 200 students. In the future, Qusay wants to work in the automotive industry where he hopes to work in sustainable transportation. In his free time, Qusay enjoys hiking, traveling, and ice skating. (Linkedin)

Wilson Psotka
Undergraduate Student
Wilson is currently a fourth-year mechanical engineering student at UCLA. As part of Rocket Project at UCLA he has contributed to the launch of three rockets as part of the recovery and internal structures teams by designing and manufacturing the load-bearing components. For summer 2023, he will be interning with 3DCeram in Berlin, where he hopes to learn how additive manufacturing with ceramics is being used in a variety of different industries. After receiving his bachelor’s degree, he plans to pursue a PhD while researching heat-transfer and its related fields, namely electronic cooling and how it will be changing to meet the needs of faster computers. In his free time, he is a leader in the Ski and Snowboard club at UCLA where he organizes trips to give students the opportunity to ski in southern California. (Linkedin)

Jonathan Park
Undergraduate Student
Jonathan is a fourth-year mechanical engineering major, expected to graduate in Spring 2024. Previously a civil engineering major, he switched to mechanical engineering at the beginning of his second year. Prior to joining NTRG, he worked in Bruin Racing Formula as the aerodynamics team member, assisting in CFD optimization of the rear wing and manufacturing wing components of the car. Since the Fall of 2022, he has been part of the design team for UCLA Biomedical Engineering Society, working on designing and manufacturing hardware aspects of the stabilometric platform for orthopedic and neurological patients. After receiving a bachelor’s degree, he plans to pursue a master’s program focusing on research. Eventually, he would like to pursue a Ph.D. in mechanical engineering. Apart from academic life, he likes to play and watch soccer, listen to music, and play the guitar and the piano. (Linkedin)

Bradley Jackson
Undergraduate Student
Bradley is currently a fourth-year mechanical engineering student at UCLA. He is largely
interested in additive manufacturing as well as clean energy. Previously, he interned at Trimark
Associates in the production department. He also works as an Academic Student Employee for
the M20 Introduction to Computer Programming with MATLAB course. After he receives his
bachelor’s degree, he plans to pursue master’s. In his free time, he plays various intramural
sports and is a member of the Lambda Chi Alpha Fraternity. He also has a passion for computer
science and is taking courses to further develop his technological breadth. (Linkedin)

Alice Taylor
Undergraduate Student
Alice is a fourth-year Mechanical Engineering major. She is the Brakes Project Engineer for the Bruin Racing Baja team and the President of ECHO, a community service nonprofit at UCLA. Alice is interested in heat transfer and mathematical modeling of mechanical systems and hopes to gain industry experience after completing her undergraduate degree. Currently, Alice is working with the Solar Processing Team to consider the design and addition of a recuperator. In her free time, Alice enjoys swimming, hiking, and live music. (Linkedin)

Theodore Lau
Undergraduate Student
Theodore is a fourth-year computer science student. He is interested in large-scale data processing and applying machine learning in various data-rich research fields. In addition to NTRG, he is also working with other UCLA research groups — the Institute of Transportation Studies and the Machine Intelligence Lab — where he helps write software to process geospatial and census data, as well as develop and test deep neural network models. (Linkedin)

Melanie Zarate
Undergraduate Student
Melanie is a second-year transfer student studying aerospace engineering. She joined the NTRG group this Fall 2023 and will be focusing on hypersonic leading edges. Outside of her research group, she is also Co- External Vice President of UCLA’s American Institute of Aeronautics and Astronautics (AIAA) chapter. Prior to joining NTRG she had previously interned within the Navy, NASA, and Boeing industries: completing five internships before her senior year. Upon graduating this year, she will be returning to The Boeing Company as a satellite manufacturing and production engineer. After working a year in industry Melanie plans on returning for graduate school part-time and hopes to complete her PhD in the future. In her free time, she enjoys attending music festivals and concerts and spending time with her pets. (Linkedin)

Stetson Schott
Undergraduate Student
Stetson joined NTRG in Winter 2023 as a junior in Mechanical Engineering with a double major in mathematics. Previously he taught the E96 class on GoKarts at UCLA’s Engineering Design Summer Institute to high school students. He is also an active participant in Bruin Supermileage, Solar Decathlon and Aquaponics. In his free time he enjoys cooking, exploring LA on his bike, and watching movies. (Linkedin)

Zeeshan Zaidi
Undergraduate Student
Zeeshan is a third-year computer science major at UCLA. Currently, his work focuses on
simulating the characteristics of Oscillating Heat Pipes and analyzing both computer-generated
and experimental data. Outside of NTRG, he is also a member of Upsilon Pi Epsilon, UCLA’s
computer science honor society. In the future, Zeeshan hopes to get involved in emerging
projects involving artificial intelligence and machine learning. He also aims to obtain more
experience in this area by pursuing a master’s degree. Outside of academics, Zeeshan is an avid
basketball enthusiast, but also enjoys soccer, tennis, and traveling with family and friends. (Linkedin)

Ryan Teoh
Undergraduate Student
Ryan is an undergraduate researcher (BS in Aerospace Engineering) at NTRG within the Solar Processing team, working to develop, test and manufacture carbon fiber using a proprietary technique that harnesses solar energy. In the future, he hopes to get involved in big projects currently underway in both the space and aviation industries, whether it be commercial hypersonic aircraft, Starlink, or NASA’s Artemis project. He sees the aerospace industry as one of the leading innovators shaping our world today, and cannot wait to be a part of that change, in any way possible. Outside of research, he enjoys mountain biking, hiking, playing soccer, tennis and basically any outdoors activities that one can imagine. (Linkedin)

Danny Super Chmaytelli
Undergraduate Student
Danny is a first-year aerospace engineering major attending UCLA on a full-ride Regents Scholarship. His early work within the NTRG was the ARPA-E SHOTEAM project, where he helped conduct experiments on sCO2 heat exchangers. Currently, he focuses on the use of strain gauges to characterize the internal dynamics and performance of oscillating heat pipes. Outside of the NTRG, Danny has interned at NASA’s Goddard Space Flight Center and runs a rapid prototyping business. He is fortunate to have received a $40,000 Amazon Future Engineer Scholarship and a $50,000 SoCal Edison STEM Scholarship. In the future, Danny would be excited to work in the space industry and expand knowledge for the benefit of humanity, with the hope of helping to colonize Mars! (Linkedin)